Stepped Bits of Cobalts of 2025
Best Choice1
Steel VisionSteel Vision 13pc Hyper-Step High-Speed Cobalt Stubby Reduced Shank Drill Bit Set, Tungsten-Cobalt 1/8"-1/2",TurboStep HSS Mechanics, Industrial-Grade, Metal Drilling for Stainless/Hardened Steel
Why we love it
Durable for tough drilling tasks.
No pilot hole needed.
Versatile for various materials.
9.7Exceptional
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Value for Money2
EZARC13% OffEZARC Step Drill Bit for Metal, M35 Cobalt Unibit Step Drill Bit Set 1/8"-7/8"(3pcs) Wear-Resistant AlTiN Coated, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic
Why we love it
Smooth cutting with triple-flute design.
Ideal for hard materials like stainless steel.
Resistant to heat and wear.
9.6Exceptional
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3
AugTouftoolant Four Spiral Flute Cobalt Step Drill Bit(Pro), 3/16" - 7/8"(12 Step Size) Impact Ready Unibit Step Drill Bit, 1/4" Hex Shank Step Bit for Metal, Stainless Steel, Aluminum, Plastic
8.4 worth the money8.0 lasts a long timeWhy we love it
Smooth cutting with four spiral flutes.
Durable in various materials including metal.
Ideal for DIY projects and home use.
9.4Excellent
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4
ROGAPERROGAPER 6PC Cobalt Step Drill Bit Set, Hex Shank Step Drill with Two Spiral Flutes and Automatic Center Punch for Metal, Stainless Steel, Aluminum, Wood, and Plastic with Aluminum Case, 50 Sizes
Main highlights- Wide application: Our step drill bits can process holes of different diameters and can be used in heavy metal, iron, aluminum, brass, plastic, aluminum alloy, wood, plastic, etc., and can also be easily and securely installed into all power tools.
- Spiral flute design: The spiral flute design prevents metal chips from flying and removes chips faster, allowing for smoother drilling without overheating. Promotes cleaner, more precise drilling operations.
- Size: Hexagonal shank step drill sizes include 1/4-1-3/8, 3/16-7/8, 1/4-3/4, 1/8-1/2, 3/16-1/2 , with popular sizes needed for daily use, it can basically meet the needs in life and has greater convenience.
- M35 Cobalt: Our M35 cobalt high speed steel drill bits, fortified with a titanium coating that makes the drill bit harder than a typical HSS bit, can reduce the friction drill, and perform well in heat, corrosion, and rust resistance.
- After-Sales Service: The Aluminum storage box for stepped drill bit is sturdy and easier to carry and store. If you are not fully satisfied with our product for any reason, please contact us for a 100% refund or replacement.
9.1Excellent
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5
AIMLENTOOLAIMLENTOOL Cobalt Step Drill Bit Set, Hex Shank Step Drill Bit with Automatic Center Punch for Metal, Stainless Steel, Aluminum, Wood, and Plastic, Storage in Aluminum Case for DIY Lovers, 50 Sizes
Main highlights- Wide application: Our step drill bits can process holes of different diameters and can be used in heavy metal, iron, aluminum, brass, plastic, aluminum alloy, wood, plastic, etc., and can also be easily and securely installed into all power tools.
- Spiral flute design: The spiral flute design prevents metal chips from flying and removes chips faster, allowing for smoother drilling without overheating. Promotes cleaner, more precise drilling operations.
- Size: Hex shank step drill sizes include 1/4-1-3/8, 3/16-7/8, 1/4-3/4, 1/8-1/2, 3/16-1/2 , with popular sizes needed for daily use, it can basically meet the needs in life and has greater convenience.
- M35 Material: Our M35 cobalt step drill bits, fortified with a titanium coating that makes the drill bit harder than a typical HSS bit, can reduce the friction drill, and perform well in heat, corrosion, and rust resistance.
- After-Sales Service: The Aluminum storage box for stepped drill bit is sturdy and easier to carry and store. If you are not fully satisfied with our product for any reason, please contact us.
9.0Excellent
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6
ZELCANZELCAN Cobalt Added M35 Step Drill Bit, Spiral Step Drill Bit, Unibit Drill Bit for Cutting Drilling Holes On Stainless Steel, Steel, Metal Sheet, Multiple Hole Stepped Up Bit for Professionals
9.3 Precision9.1 Simple to use8.0 worth the moneyWhy we love it
Durable Sturdy: Cobalt added for extra durability.
Jam Free Performance: Dual flute design three sided shank.
One Bit for All: 10 sizes, 50 diameters in total.
8.7Very Good
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7
BILIPLE10% Off5Pcs Step Drill Bit & 5Pcs Countersink Drill Set, 1Pcs Center Punch, 13Pcs Cobalt Drill Bit Set, M35 High Speed Steel Jobber Kit for Hardened Metal, Multiple Hole Stepped Up Bits for DIY(1/16"-1/4)
Main highlights- 【Drill Bit Set】The set includes 24 pcs drill tools, 13 pcs cobalt drill bits (1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4"), 5 pcs step drill bits (3/16-1/2'', 1/8-1/2'', 1/4-3/4'', 3/16-7/8'', 1/4-1-3/8''), 5 pcs countersink bits (1/4'', 3/8'', 1/2'', 5/8'', 3/4'') and 1 The center punch is used to mark an indentation on the workpiece to form a starting point to prevent screws and drill bits from deviating.
- 【Precision Design】The step drill adopts a 118° split drill tip and double groove design, which can increase the cutting speed and automatically center, prevent tool slip, and make material particles easier to discharge; the countersunk drill bit is suitable for drilling 90 degree holes in wood and soft metal countersunk screws and fasteners; the 135 of the M35 cobalt drill bit The sharp tip and twisted design allow for faster cutting.
- 【Wide Application】This versatile drill bit set has a wide variety of options for processing holes of different diameters, suitable for heavy metal, iron, aluminum, brass, plastic, aluminum alloy, wood, plastic and other materials, and can be used with hand drills, bench drills and electric drills. It is also suitable for home DIY projects, handymen and professionals.
- 【Great Gift Choice】This drilling tool combines multiple tool functions in one, suitable for professionals or beginners, and can easily handle wood, metal, plastic boards, as well as make furniture and wooden toys. It is a perfect gift for fathers, friends, carpenters, DIY enthusiasts, home people, hobbyists and woodworkers.
- 【High-Quality Material】Our countersunk drill, step drill and M35 cobalt drill bit set are made of high-speed steel, which has good heat resistance, corrosion resistance and rust resistance, and can extend the edge life even in extreme temperatures. The step drill bit set is reinforced with titanium coating, which is harder than ordinary high-speed steel drill bits, which can reduce friction and improve sharpness.
8.6Very Good
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8
Cortool10% OffCORTOOL 2-Inch HSS Spiral Groove Step Drill Bit, 10 Sizes Cobalt Added High Speed Steel 1/4" to 2" Drill Bit for Sheet Aluminium Metal Wood, Big Multiple Hole Stepped Up Bit for DIY Lovers
Main highlights- The step drill bit is made from upgraded high speed steel characterized by well-balanced toughness, wear resistance and red hardness properties for better and faster hole -drilling performance. The cobalt coating makes the drill bit more durable so that it can last for years with uncompromised quality.
- The spiral dual-flute design prevents metal fillings from flying around and clears chips faster thus it can drill more smoothly without heating up.
- The rapid strike tip drills twice as fast as the average step drills and can drill acrylic, PVC, wood, aluminum and iron sheets up to 0.2’’ in thickness.
- CORTOOL drill bit is bigger in size so it can drill holes with larger dimensions.
- 10 hole sizes: 1/4; 3/8; 19/32; 3/4; 1'; 1'3/16; 1'3/8; 1'5/8; 1'3/4; 2'.
8.5Good
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9
ZELCAN26% OffZELCAN Step Drill Bits, HSS 5PCS Titanium Step Drill Bit Set, 50 Sizes in 5 High Speed Steel Unibit Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped Up Bits for DIY Lovers
8.9 Precision8.9 Flexibility8.2 worth the moneyWhy we love it
Extreme Durability: Long lasting shiny.
Drill Different Sizes: 1/4, 3/8 1/2 in.
Smooth Drilling: Fast precise.
8.2Good
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10
Miofth19 Piece Drill Bit Set, Stepped Point Drill Bit w/Blue Oxide Finish, High-Speed Steel Jobber for Drilling Acrylic, Steel, Hard Metals
Main highlights- 【Professional & Widely Used Bit】 19-Piece drill set with sharp and hard cutting edges is ideal for versatile applications, especially for projects such as kitchenware maintenance, machine parts, medical equipment, and DIY projects. It can also be used to drill acrylic, high-temperature steel, and even brass.
- 【Portable Case】 Say goodbye to constantly losing or misplacing your drill bits! Our Hex drill bit set for steel has an ergonomic and portable round carrying case with a built-in clip. The case can be easily attached to your tool belt, keeping your bits within immediate reach.
- 【Enhanced Durability】Our industrial-grade step drill set is made of robust high-speed steel with a titanium coating. The combination of high-speed steel and black and gold oxide finish increases the drill bit's corrosion resistance and wear resistance; each step drill bit ensures exceptional strength. Each drill bit is carefully inspected at the factory to ensure superior quality and longevity.
- 【19 Piece Drill Bit Set】 Blue Stepped Point Cobalt Drill Bits start easier, drill faster, increase lifespan, and reduce heat compared to standard drill bits.
- 【135°Split Point】 The 135-degree fast cutting point is automatically centered and penetrates quickly with less pressure, a fully ground drill bit with a sharp and durable cutting edge. Twist design to bring metal shavings up and out of the hole drill.
8.1Good
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