Top 18 step bit set cobalt for 2021

When you want to find step bit set cobalt, you may need to consider between many choices. Finding the best step bit set cobalt is not an easy task. In this post, we create a very short list about top 18 the best step bit set cobalt for you. You can check detail product features, product specifications and also our voting for each product. Let’s start with following top 18 step bit set cobalt:

Best step bit set cobalt

Product Features Editor's score Go to site
CO-Z HSS 5PCS Titanium Step Drill Bit Set with Automatic Center Punch, 50 Sizes in 5 High Speed Steel Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped Up Bits for DIY Lovers CO-Z HSS 5PCS Titanium Step Drill Bit Set with Automatic Center Punch, 50 Sizes in 5 High Speed Steel Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped Up Bits for DIY Lovers
Go to amazon.com
DEWALT Step Drill Bit Set, 3-Piece (DWA1790IR) DEWALT Step Drill Bit Set, 3-Piece (DWA1790IR)
Go to amazon.com
IRWIN Step Drill Bit Set, 3-Piece (10502CB) IRWIN Step Drill Bit Set, 3-Piece (10502CB)
Go to amazon.com
Neiko 10193A Titanium Step Drill Bit Set, High Speed Steel | 3-Piece Set | Total 28 Sizes Neiko 10193A Titanium Step Drill Bit Set, High Speed Steel | 3-Piece Set | Total 28 Sizes
Go to amazon.com
TEMO M35 Cobalt Double Flute Step Drill, 9 Size From 1/4 Inch (6.4 mm) To 3/4 Inch (19 mm), 3/8 Inch (9.5 mm) Shank TEMO M35 Cobalt Double Flute Step Drill, 9 Size From 1/4 Inch (6.4 mm) To 3/4 Inch (19 mm), 3/8 Inch (9.5 mm) Shank
Go to amazon.com
Klutch Cobalt Step Drill Bit Set - 3/16in. to 1 3/8in. Dia. 5-Pc. Set Klutch Cobalt Step Drill Bit Set - 3/16in. to 1 3/8in. Dia. 5-Pc. Set
Go to amazon.com
CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case
Go to amazon.com
HYCLAT 5pcs Titanium Step Drill Bit, Hss Cobalt Multiple Hole 50 Sizes, High-Speed Metal Steel Step Drill Bit Set with Aluminum Case HYCLAT 5pcs Titanium Step Drill Bit, Hss Cobalt Multiple Hole 50 Sizes, High-Speed Metal Steel Step Drill Bit Set with Aluminum Case
Go to amazon.com
TACKLIFE Step Drill Bit Set with Automatic Center Punch, Titanium Spiral Grooved Drill Bit, Double Cutting Blades, X-Type Opening, 50 Sizes in HSS Cobalt with Aluminum Case TACKLIFE Step Drill Bit Set with Automatic Center Punch, Titanium Spiral Grooved Drill Bit, Double Cutting Blades, X-Type Opening, 50 Sizes in HSS Cobalt with Aluminum Case
Go to amazon.com
HYCLAT Titanium Step Drill Bit Set & Automatic Center Punch - High-Speed Metal Steel Drill Double Cutting Blades, Hss Cobalt Multiple Hole 50 Sizes, with Aluminum Case or Canvas Bag HYCLAT Titanium Step Drill Bit Set & Automatic Center Punch - High-Speed Metal Steel Drill Double Cutting Blades, Hss Cobalt Multiple Hole 50 Sizes, with Aluminum Case or Canvas Bag
Go to amazon.com
CO-Z HSS 5PCS Titanium Spiral Grooved Step Drill Bit Set with Automatic Center Punch, Unibit Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped up Bits for DIY Lovers CO-Z HSS 5PCS Titanium Spiral Grooved Step Drill Bit Set with Automatic Center Punch, Unibit Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped up Bits for DIY Lovers
Go to amazon.com
Step Drill Bit Set & Automatic Center Punch 5pcs HSS Cobalt Titanium Step Drill Bit Set, Multiple Hole 50 Sizes High Speed Step Drill Bit Set with Aluminum Case Step Drill Bit Set & Automatic Center Punch 5pcs HSS Cobalt Titanium Step Drill Bit Set, Multiple Hole 50 Sizes High Speed Step Drill Bit Set with Aluminum Case
Go to amazon.com
Sudopru Step Drill Bit Set- 3 Pcs Cobalt Stepped Drill Bits Unibit Sheet Metal Hole Cutter for Metal, Stainless Steel, Cones, Plastic, Wood Sudopru Step Drill Bit Set- 3 Pcs Cobalt Stepped Drill Bits Unibit Sheet Metal Hole Cutter for Metal, Stainless Steel, Cones, Plastic, Wood
Go to amazon.com
Step Drill Bit Set, 5 Pcs 50 Sizes Cobalt Step Drill Bits for Metal, Wood, Plastic Sheet, Stainless Steel Metric Step Drill Bit, Titanium Stepped Drill Bits Step Drill Bit Set, 5 Pcs 50 Sizes Cobalt Step Drill Bits for Metal, Wood, Plastic Sheet, Stainless Steel Metric Step Drill Bit, Titanium Stepped Drill Bits
Go to amazon.com
Segomo Tools 5 Piece SAE Multiple Hole 50 Sizes HSS Cobalt Step Drill Bit Set with Aluminum Case Segomo Tools 5 Piece SAE Multiple Hole 50 Sizes HSS Cobalt Step Drill Bit Set with Aluminum Case
Go to amazon.com
Yesland 5pcs Hss Cobalt, Multiple Hole 50 Sizes High Speed Metal Step Drill Bit Set with Aluminum Case Yesland 5pcs Hss Cobalt, Multiple Hole 50 Sizes High Speed Metal Step Drill Bit Set with Aluminum Case
Go to amazon.com
xnrtop 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case xnrtop 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case
Go to amazon.com
THINKWORK Step Drill Bit, M35 Cobalt Spiral Groove & HSS Titanium Coated Straight Groove Step Drill Bit Set, Double-edged Blade, Used for Drilling Plate Aluminum Metal Wood Hole, Large Hole Drill Suitable for DIY Lovers, 1/4 to 1-3 / 8-Inch Drill Bit THINKWORK Step Drill Bit, M35 Cobalt Spiral Groove & HSS Titanium Coated Straight Groove Step Drill Bit Set, Double-edged Blade, Used for Drilling Plate Aluminum Metal Wood Hole, Large Hole Drill Suitable for DIY Lovers, 1/4 to 1-3 / 8-Inch Drill Bit
Go to amazon.com
Related posts:

1. CO-Z HSS 5PCS Titanium Step Drill Bit Set with Automatic Center Punch, 50 Sizes in 5 High Speed Steel Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped Up Bits for DIY Lovers

Feature

HSS STEEL CONSTRUCTION: High-speed steel construction for longer cutting edge life even at extreme temperatures
TITANIUM COATING: Coated by titanium, this step drill set performs well in heat, corrosion and rust resistance.
AUTOMATIC CENTER PUNCH: Delivers an automatic, high-impact, spring-loaded strike when pressed against surface, adjustable cap regulates striking force
50 SIZE IN 5: The bits set includes five standard step drill bits that can replace 50 individual drill bits.
A MUST-HAVE FOR HANDYMAN OR PROFESSIONALS: Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper and many other types of sheet metal.

Description


Description:
Our step drill bit set provides faster and more convenient drilling than single flute bits. The
easy-to-read step markings and targets save time when drilling holes, perfect for HVAC work,
home repairs and light jobs such as drilling holes in plastic, aluminum, copper, stainless steel
and many other types of sheet metal. Double cutting blades and X-type openings design
ensure a faster and smoother cutting and 3-sided shank design prevents slip in drill chuck.

Specification:
Size:
#1: 1/4" to 1-3/8" 10 Steps (1/4'', 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8")
#2: 3/16" to 7/8" 12 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8")
#3: 1/4" to 3/4'' 9 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4")
#4: 1/8" to 1/2" 13 Steps (1/8", 5/32", 3/16'', 7/32", 1/4'', 9/32", 5/16", 11/32", 3/8'', 13/32", 7/16'', 15/32", 1/2'')
#5: 3/16" to 1/2" 6 Steps (3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'')
Material: High-speed steel

Package List:
5 x Step Drill Bit Set
1 x Automatic Center Punch
1 x User's Manual
1x Aluminum Case

2. DEWALT Step Drill Bit Set, 3-Piece (DWA1790IR)

Feature

Titanium two flute spiral design provides longer life and better chip removal
Split point tip increases speed
Laser engraved numbers increases step visibility
Optimized for impact driver usage

3. IRWIN Step Drill Bit Set, 3-Piece (10502CB)

Feature

Drill bit is engineered with M-35-grade cobalt steel for maximum life when drilling in tough steel
SpeedPoint tip for fast starts
Drill bits feature a radial concave flute
IRWIN drill bits have laser-marked sizes for simple identification
Includes #1C, #2C and #3C bits
Drill bit is engineered with M-35-grade cobalt steel for maximum life when drilling in tough steel
SpeedPoint tip for fast starts
Drill bits feature a radial concave flute
IRWIN drill bits have laser-marked sizes for simple identification
Includes #1C, #2C and #3C bits

4. Neiko 10193A Titanium Step Drill Bit Set, High Speed Steel | 3-Piece Set | Total 28 Sizes

Feature

TITANIUM | HIGH SPEED STEEL: classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal
135 SPLIT POINT TIP: increases cutting speed with self-centering and prevents walking
TWO-FLUTE DESIGN: clears chips faster and allows particles to escape easily
TRI-FLATTED SHANK: fits into power tools chuck securely and eliminates slip
SET INCLUDES: Bit #1 (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"; Bit #2 (13 steps): 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"; Bit #3 (9 steps): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"

5. TEMO M35 Cobalt Double Flute Step Drill, 9 Size From 1/4 Inch (6.4 mm) To 3/4 Inch (19 mm), 3/8 Inch (9.5 mm) Shank

Feature

M35 cobalt step drill 3/8" (9.52mm) shank 9 hole 1/4" (6.35mm) to 3/4" (19.05mm)
9 hole sizes: 1/4" (6.35mm), 5/16" (7.94mm), 3/8" (9.52mm), 7/16" (11.11mm), 1/2" (12.7mm), 9/16" (14.29mm), 5/8" (15.88mm), 11/16" (17.46mm), 3/4" (19.05mm), with 1/16" (1.59mm) increments. 3/8 Inch Shank with 3 flats to eliminate slipping
Smooth cutting double-fluted design for true round hole; Self-starting for clean holes in thin materials
The step drill bit is made with M35 cobalt. It is ideal for variety of materials from stainless steel, metal, plastic, fiberglass to wood. They also help to enlarge existing holes. M35 HSSCo is a high speed steel alloy made up of 5% cobalt. M35 is similar to M2, but with 5% cobalt added.
The addition of cobalt increases heat resistance. It is widely used in metal manufacturing because of its ability to resist wear over conventional high speed steels, allowing for shorter cycle times in production environments due to higher cutting speeds or from the increase in time between tool changes. M35 is also less prone to chipping when used for interrupted cuts.

6. Klutch Cobalt Step Drill Bit Set - 3/16in. to 1 3/8in. Dia. 5-Pc. Set

Feature

High-speed, heavy-duty steel with cobalt coating
Professional quality
3/16-1/2in. dia., 6-step bit
1/4-3/4in. dia., 9-step bit
1/4-1 3/8in. dia., 11-step bit

7. CO-Z 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case

Feature

Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).
Please mark the spot that you are to drill for easier drilling and improved drill bits life.
All the bits come in a well-organized case for easy transport and storage.

8. HYCLAT 5pcs Titanium Step Drill Bit, Hss Cobalt Multiple Hole 50 Sizes, High-Speed Metal Steel Step Drill Bit Set with Aluminum Case

Feature

FEATURES: 5pcs step drill bits enable 50 sizes - each step drill bit can drill several bore diameters. It's can work as 50pcs twist drill bits. You don't have to replace drill bit constantly for different bore sizes
TITANIUM HIGH-SPEED STEEL: classic and sturdy high-speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of the metal sheet
DOUBLE CUTTING BLADES & THREE-SIDED SHANK - Double cutting blades and X-type openings design ensure a faster and smoother cutting; 3-sided shank design prevents slip in drill chuck can cut through the wood, sheet metal, steel, and other surfaces
WIDELY APPLICATION: The step drill bits can be used to chamfer, bur, and drill or enlarge holes. The step drill bits can work with stainless steel sheets, aluminum alloy, plastic material, and wood. The protective aluminum case makes the drills not easy to dull
WHAT YOU GET - HYCLAT Step Drill, Aluminum Case or Canvas Bag, 24 months warranty - Ideal Gift for Father's Day, Perfect for DIY lover

9. TACKLIFE Step Drill Bit Set with Automatic Center Punch, Titanium Spiral Grooved Drill Bit, Double Cutting Blades, X-Type Opening, 50 Sizes in HSS Cobalt with Aluminum Case

Feature

SPIRAL GROOVE&TITANIUM COATING-spiral grooved drill cut more smoothly than straight groove, the drill bit is sharp and can easily drill perfect holes in the metal sheet; Titanium coating can reduce friction.Drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc
AUTOMATIC CENTER PUNCH-the thimble head is made of carbide tipped bit and its impact resistance is 10 times that of ordinary center punches;before drilling, automatic center punch can mark the positioning hole to prevent the drill and the screw from sliding.You can adjust the impact of wood, metal, plastic, leather and other materials
LASRE MARKING&X-TYPE OPENINGS-laser marking,clearer dimensions; X-type opening design can facilitate the removal of cutting waste when drilling to keep the drill bit clean
DOUBLE CUTTING BLADE&ALUMINUM BOX-double-cutting blade can cut faster and smoother;Aluminum alloy box can protect the drill bit.Breaking Windows is easy used as a safety escape hammer
LONG THIMBLE&SERVICE LIFE - thimble alloy steel, impact resistance, extend the life of automatic center punch

10. HYCLAT Titanium Step Drill Bit Set & Automatic Center Punch - High-Speed Metal Steel Drill Double Cutting Blades, Hss Cobalt Multiple Hole 50 Sizes, with Aluminum Case or Canvas Bag

Feature

Dimensions: 5 pcs step drill bits enable 50 sizes - each step drill bit can drill several bore diameters. It can work as 50 pcs twist drill bits. You don't have to replace drill bit constantly with the step drill bits.
AUTOMATIC CENTER PUNCH - the center punch delivers an automatic, high-impact, spring-loaded strike-through adjusting the cap; it has a deeply knurled surface for nonslip control. The protective aluminum case makes the drills not easy to dull, bag packing will more light and easy to carry, both of them would be shipped randomly.
TITANIUM HIGH-SPEED STEEL: classic high-speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, and many other types of the metal sheet.
DOUBLE CUTTING SIDE & THREE-SIDED SHANK - Double cutting side and X-type openings design ensures a faster and smoother cutting; 3-sided shank design prevents slip in drill chuck can cut through the wood, sheet metal, steel, and other surfaces.
WHAT YOU GET - HYCLAT Step Drill, Automatic Center Punch, Aluminum Case, 24 months warranty - Ideal Gift for Father's Day, Perfect for DIY lover.

11. CO-Z HSS 5PCS Titanium Spiral Grooved Step Drill Bit Set with Automatic Center Punch, Unibit Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped up Bits for DIY Lovers

Feature

Durable Titanium Coated Bits W/Spiral Grooves ----- The spiral grooved drill cut more smoothly than straight grooved ones, the drill bit is sharp and can easily drill perfect holes in the metal sheet while the Titanium coating improves durability hence lengthening the service life.
50 Sizes In 5 ----- Our bits set includes five standard step drill bits that are capable to drill 50 holes with different diameters, saving you time and efforts; to make your holes more accurate, please do use a center punch to locate before drilling.
Universal Compatibility ----- The step drill bits help you to drill holes with different diameters simultaneously, compatible with aluminum, copper, steel sheets and plastic and wood board that is less than 3mm/0.12 in. in thickness.
Less Splashing & Saves Your Money ----- X-type opening design can facilitate the removal of cutting waste when drilling to keep the drill bit clean.
Clear Laser Measurements ----- The well-manufactured bits come with very highly visible laser measurements for you to easily find the size you want, improving your drilling accuracy.

12. Step Drill Bit Set & Automatic Center Punch 5pcs HSS Cobalt Titanium Step Drill Bit Set, Multiple Hole 50 Sizes High Speed Step Drill Bit Set with Aluminum Case

Feature

50 SIZES IN 5 PIECES STEP DRILL BITS: The bits set includes five standard step drill bits that can replace 50 individual drill bits and process 50 different kinds of diameter holes, compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
135 DEGREE SPLIT POINT AND TWO-FLUTE DESIGN:The drill bit point is designed as X-shape with 135 degree, which can prevent the drill slipping while working in high speed. With two-flute design, provides a faster and smoother cutting.
TITANIUM COATING: The Titanium coating resists the drill bits from corrosion and rust, deduces friction making it easily to do multiple drills on surfaces such as plastic, aluminum, copper, stainless steel, and other types of sheet metal.
HIGH QUALITY AND WIDELY USE: The step drill bits are make by high speed steel, strong and durable can used for stainless steel sheet, aluminum alloy, plastic material and wood.
AUTOMATIC CENTER PUNCH & ALUMINUM CASE: The center punch help you mark the center point that you want to drill, with exquisite aluminum case protects the drill bits not easy to dull and prolongs the drills lifespan.

13. Sudopru Step Drill Bit Set- 3 Pcs Cobalt Stepped Drill Bits Unibit Sheet Metal Hole Cutter for Metal, Stainless Steel, Cones, Plastic, Wood

Feature

28 Size in 3- For using drill bit set, step drill bit, cobalt drill bit set, cones for drills, drill bits for metal, metal drill bits for steel
Strong and Hard- For using automatic center punch, step drill bits for metal, drill bit, drill bit set for metal, metal drill bits, unibit step drill bit, titanium drill bit set
Faster And Easier To Cut- For using drill bits for steel, hole drill bit, drill bit for metal, step drill bit set, stepped drill bits, step drill bits, step bits for metal, drill bits for stainless steel, step bit, step drill
Work as sheet metal hole cutter, metal drill bit set, center punch spring loaded, titanium drill bits, steel drill bits, center drill bit set, step bits, hole drill, drill step bit, drill bit for stainless steel, metal drill bit, plastic drill bit
Use as uni bit, titanium drill bit, step up drill bit, titanium step drill bit, metal cutting drill bits, drill bit set cobalt, hole cutter drill bit, drill bit step, metal cutter for drill, cone drill bit, center punch for metal, unibits for metal

14. Step Drill Bit Set, 5 Pcs 50 Sizes Cobalt Step Drill Bits for Metal, Wood, Plastic Sheet, Stainless Steel Metric Step Drill Bit, Titanium Stepped Drill Bits

Feature

Work as step drill bit, cobalt drill bit set, step bit, step drill bits for metal, step drill, metal drill bits, step bits for metal, step drill bit set
Use as stepped drill bits, step bits, metric step drill bit, step drill bits, step drill bit set 5
Use for drill bit step, 2 inch step drill bit, step bit set, step drill set, stepper bit, step bit drill bit, stepped drill bit
Work for drill step bit, step up bit, cobalt step drill bit, hard metal drill bits, uni bit, step up drill bit
Suit for titanium step drill bit, step down bit, cobalt step bit, step bit for stainless steel, titanium step bit, multi drill bit, step drills

15. Segomo Tools 5 Piece SAE Multiple Hole 50 Sizes HSS Cobalt Step Drill Bit Set with Aluminum Case

Feature

5 piece step drill bit set (50 sizes in total) with non-walking drill tips
Made from High Speed Steel 4241 with titanium coating for long life and easy cutting/drilling through steel sheets, aluminum sheets, wood board, plastic board etc.
Different sized shanks ensure full compatibility with 1/4, 3/8 and 1/2 inch chuck sizes
Set includes: Drill Bit 1: (3/8". 10 Steps): 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8. Drill Bit 2: (3/8". 12 Steps): 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8. Drill Bit 3: (3/8". 9 Steps): 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4. Drill Bit 4: (1/4". 13 Steps): 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2. Drill Bit 5: (1/4". 6 Steps): 3/16, 1/4, 5/16, 3/8, 7/16, 1/2
The bits come supplied in an organized aluminum case for easy storage and transport

16. Yesland 5pcs Hss Cobalt, Multiple Hole 50 Sizes High Speed Metal Step Drill Bit Set with Aluminum Case

Feature

Yesland hss cobalt high speed steel along with the titanium coating ensures extreme durability which will stay new and shiny for years to come. It can also ensures outstanding sharpness, reduce the friction and runs cooler.
The drill bits set includes 5 common sizes for versatility, it can fit the majority of brands currently on the market. Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 inch chuck sizes.
Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. With these step drill bits, you can process different kinds of diameter holes, which greatly saves you a lot of time. Suitable for DIY, general building or engineering use.
All the bits come in a well-organized case for easy transport and storage. A drill bits holder with size index is included in the metal kit so that no need to worry about it falling out.
Two-flute design deburrs during drilling, clearing chips faster and allowing particles to escape for cleaner operation, keep bit cleaning. Please mark the spot that you are to drill for easier drilling and improved drill bits life.

17. xnrtop 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case

Feature

Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.
Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits).
Please mark the spot that you are to drill for easier drilling and improved drill bits life.
All the bits come in a well-organized case for easy transport and storage.

18. THINKWORK Step Drill Bit, M35 Cobalt Spiral Groove & HSS Titanium Coated Straight Groove Step Drill Bit Set, Double-edged Blade, Used for Drilling Plate Aluminum Metal Wood Hole, Large Hole Drill Suitable for DIY Lovers, 1/4 to 1-3 / 8-Inch Drill Bit

Feature

M35 Cobalt High Speed SteelThe durable step drill is made of HSS M35 cobalt, and the surface is plated with cobalt. The red hardness, wear resistance and toughness is stronger, not easy to become dull or broken.It is an ideal choice for cutting carbon steel and stainless steel. When you need to expand the hole in the stainless steel plate, such as expanding the kitchen sink hole, please use it. The addition of cobalt increases heat resistance and is widely used in metal manufacturing.
HSS titanium coatingAnother step reaming drill is made of high-speed steel, which can ensure sharp, fast execution and maintain strength and efficiency. The surface is treated with a titanium alloy, which greatly improves the cutting performance of the drill bit, is more wear-resistant, and extends the service life. It is an ideal choice for materials ranging from iron, aluminum, plastic, fiberglass to wood.
Efficient DesignThe 135X split point can be automatically centered to increase the cutting speed and prevent walking. The double spiral groove & double straight groove design can reduce cutting resistance, make cutting smoother, remove chips faster, and make particles easier to escape, thereby achieving cleaner drilling operations. The convenient 3/8 (9.5mm) triangular shank prevents the drill chuck from slipping and can be suitable for most brands on the current market.
Total 20 Step Sizes1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1- 1/4", 1-3/8", there is a size mark on the side of each step, which is convenient for you to use. It can replace 10 separate drill bits, saving the time and cost of replacement, and can automatically deburr during the drilling process. Keep the drill bit clean. It is an essential item for handymen or professionals, very suitable for home maintenance and light work.
After-Sales ServiceIf you encounter any problems when using our products or are not satisfied with the products, please feel free to contact us. The THINKWORK after-sales service team will contact you in time to solve your problem.

Conclusion

All above are our suggestions for step bit set cobalt. This might not suit you, so we prefer that you read all detail information also customer reviews to choose yours. Please also help to share your experience when using step bit set cobalt with us by comment in this post. Thank you!

You Might Also Like