Attributes

Brand	-
Category	Root / Home Furniture
Origin	-
Material	Cobalt Alloy Steel
Surface Finish	Gold Titanium Nitride Coated
Shank Type	Round Straight Shank
Compatibility	Fits Standard Power Drills
Primary Application	Drilling Stainless Steel and Aluminum
Bit Design	Serrated Step with Self-Centering Tip
Heat Resistance	High Temperature Resistant up to 600°C
Durability	Extended Life for Heavy-Duty Use
Package Contents	1x Step Drill Bit, 1x Storage Case
Warranty	1-Year Manufacturer Warranty

6 reviews

Anonymous

Mar 27, 2026

Rating: 5/5

No more pilot holes needed

The self-centering tip is a game changer. I was able to drill precise holes in thick alloy without needing to pre-drill. Highly recommend for DIY furniture repair.

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect for my workshop projects

This drill bit cut through stainless steel sheets like butter. The serrated edge really helps prevent slipping when starting the hole.

Anonymous

Mar 13, 2026

Rating: 4/5

Good for thin to medium metal

Works excellent on sheet metal and standard aluminum profiles. Struggled a bit with very thick industrial steel, but that is expected for this size.

Anonymous

Mar 12, 2026

Rating: 5/5

Essential tool for metalworking

Bought this to modify some garden furniture frames. The step design allows me to get the exact hole diameter I need without changing bits. Very satisfied.

Anonymous

Mar 08, 2026

Rating: 5/5

Stays sharp after heavy use

I have drilled over 50 holes in various metal brackets and the bit still looks brand new. The gold coating seems to reduce friction effectively.

Anonymous

Mar 03, 2026

Rating: 4/5

Great quality, slightly pricey

The cobalt construction feels very solid. I used it to expand holes in a metal cabinet frame and it worked flawlessly. Just wish it came in a set of different sizes.

5 FAQ

Q: How do I clean the bit after use?

A: Simply wipe off any metal shavings with a dry cloth. If resin or heavy residue builds up, you can use a mild solvent, but avoid abrasive cleaners that might damage the coating.

Q: Is the shank compatible with impact drivers?

A: Yes, the round straight shank fits standard chuck drills and most impact drivers, though we recommend using a standard drill for better control on precision holes.

Q: Can this drill bit be used on wood?

A: While primarily designed for metal, it can cut through wood. However, for best results and longevity, we recommend using it on metal, plastic, or thin alloy sheets as intended.

Q: What is the maximum thickness of metal this can drill?

A: This specific bit is optimized for sheet metal and plates up to 4mm thick. For thicker materials, please ensure you use a low speed and steady pressure.

Q: Does this come with lubricant?

A: The package includes the drill bit and a storage case. Lubricant is not included, but we strongly suggest using cutting oil when drilling stainless steel for optimal performance.

Explore your interests

[Air Platinum 3-in-1] Durex 000 Hyaluronic Acid Condoms - Ultra Lubricated, Thin, Official Authentic Flagship Product

$68.90

Jianmei Chuangyan Razor for Women, Underarm Hair Remover, Painless Private Area Shaving Tool for Ladies

$12.90

Mahjong Soul Top-Up, Monthly Amulet, Monthly Card, 340/660/2800/6480 Jade, Costume Voucher Recharge, In-Game Currency

$1.00

Computer Monitor Riser Stand with Desktop Storage Shelf for Office Organization

$7.15

Student Full-Screen MP4 with WiFi, MP5 for Novels/Videos/Comics, MP3 Music Player

$166.36

Lexar 128GB SD Card V60 High-Speed Camera Memory Card for Canon & Fuji - 1667x SD Storage Card

$199.00

usmile Replacement Brush Heads Shock-Absorbing Basic Clean Compatible with P10 P20 PRO Adult Electric Toothbrush

$59.00

Aigo Memory Card 128GB for Dash Cam, MicroSD Storage Card 64GB for Surveillance Camera, TF Card 256GB

$37.80

Aigo Memory Card 32GB SD Card 64GB - TF Card Storage 128GB for Dash Cams, DJI Pocket 3, and Switch

$47.82

Serrated Step Drill Bit Cobalt Hole Opener Metal Step Drill Set Alloy Stainless Steel Multi-function Reamer

$36.00

JNN Pen-Shaped Voice Recorder, Portable Professional HD Noise Reduction Device for Lawyers & Students, Classroom Transcription Equipment A

$68.00

First-Hand Equipment: Italian Imported Bertolino Four-Unit Double Cross-Bridge Woolen Spinning Carding Machine, 2.2 Meters Wide

$1,950,010.00

Office Nap Folding Bed Lounge Chair - Simple Single Cot for Night Shifts, Hospital Companion Bed

$69.00

High-Speed USB Flash Drive for Cars, Large Capacity Mini Thumb Drive, Official Genuine Product

$8.90

Arknights CN Server Top-Up: Monthly Card & Oricon Pack Recharge Services (30, 68, 98, 168, 198, 328, 648 CNY)

$1.00

Large Tempered Steel Trowel, Plastic Flat Cement Smoother, Plastering Board for Masons and Tile Workers

$14.76

USB Drive for PC System Reinstallation (Win10/11/7/XP) Genuine One-Click PE Boot Pure Premium Pro Edition

$28.80

Meidas Wall-Mounted Bookshelf - Custom Floating Shelves & Desk Combinations for Home Office

$299.00

High-Speed Memory Card: 2T Dash Cam Dedicated SD Card, 512G Universal for Video Surveillance, 1T Phone TF Card, 256G

$29.90

Bluetooth MP3/MP4 Walkman Player for Students and High Schoolers; MP5/P6 Novel Reading and Music Device; MP7/P9 Multimedia Player

$49.90

Supernatural Action Squad Top-Up: 3280/6480 Gold Bricks, Deluxe Magic Box, Privilege Card Recharge, 648/328 Gift Packs

$1.00

Natural Coconut Palm Mattress, Firm Support for Children and Adults, Available in 1.2m/1.35m/1.5m/1.8m, Foldable and Customizable

$90.00

Folding Nap Bed for Office Lunch Break, Portable Hard Board Single Cot for Home Care or Camping

$57.24

Portable Voice Recorder, Professional HD Noise-Canceling Recording Device for Students in Class, Text Conversion Capability, Keychain Device

$98.00

Fanmu Professional HD Noise-Cancelling Voice Recorder, Portable Meeting Record Device with AI Transcription, Ideal for Students and Lawyers

$238.00

High-Capacity Phone USB Flash Drive - Type-C Dual Interface 128GB/512GB for Phones and Computers, High Speed

$19.60

Heavy-Duty Adjustable F-Clamp for Woodworking - Dual-Direction Tightening with Bearing Mechanism, GF-Type Fixture

$5.80

Junwang Taole One-Card 30 Yuan - Official Card Code, Automatic Delivery. Beware of Scams. Do Not Share Card Codes.

$30.00

Electric Wrench Adapter, Dual-Use Square Shaft, Multi-Function Drill Bit Converter with T-Shank, Complete Accessory Set

$29.00

High-Speed Universal Memory Card 512GB Dedicated SD Card for Dash Cam, 256GB Camera Surveillance Phone TF Card 128GB

$29.90

New Type Woodworking Saw Blade for Solid Wood, Aluminum, PVC, Plastic, Angle Grinder Cutting Disc, Electric Saw Alloy Cutting Blade with Connecting Rod

$5.50