Skip to main content
Home / Home Furniture / High-Hardness Hole Punching Step Drill Bit Reamer Opener Stainless Steel Metal Special Conical Ladder Drilling Magic Tool

Attributes

Brand -
Category Root / Home Furniture
Origin -
Material High-Speed Steel (HSS) with Titanium Coating
Shank Type Round Straight Shank
Compatible Materials Stainless Steel, Iron, Copper, Aluminum, Plastic
Drill Point Angle 118 Degrees
Surface Treatment Gold Titanium Nitride Coating
Step Count 9 Steps (Incremental Sizing)
Maximum Hole Diameter 50mm
Application Metalworking, Cabinet Installation, Pipe Fitting
Durability Rating High Hardness (HRC 65+)
Package Includes 1x Step Drill Bit, 1x Protective Case

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 4/5

Great tool, needs slow speed

This drill bit works very well, but you must use a low RPM setting on your drill. If you go too fast, it can overheat. Once I slowed down, it produced clean, burr-free holes in my metal shelving units.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Smooth operation on thick metal

I was skeptical about drilling into thick aluminum brackets for my home office desk setup. This bit handled it effortlessly. The gold coating seems to reduce friction significantly.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect for cabinet hardware installation

I bought this to install handles on my new kitchen cabinets. The stepped design makes it incredibly easy to get the exact hole size without changing bits. It cut through the stainless steel face frames like butter.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Clean cuts every time

No more jagged edges or need for deburring tools. The holes this creates are perfectly round and smooth. Highly recommend for anyone doing metal fabrication or furniture modification at home.

A

Anonymous

Mar 10, 2026

Rating: 4/5

Good value for DIYers

Solid construction and feels heavy-duty. It walked a little on the first punch, so I recommend using a center punch mark before starting. Otherwise, it's a fantastic addition to my toolbox.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Replaced my entire drill bit set

Why carry ten different bits when this one does it all? The conical ladder design is genius for furniture assembly where hole sizes vary slightly. Very sharp out of the box.

5 FAQ

Q: Is lubrication required when using this bit on stainless steel?

A: We highly recommend using cutting oil or lubricant when drilling stainless steel to extend the life of the bit and ensure a smoother cut.

Q: Can this drill bit be used with a standard handheld power drill?

A: Yes, it features a standard round straight shank that fits most conventional handheld drills and drill presses.

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

A: While it depends on the specific alloy, it is generally effective on sheet metal and plates up to 4-5mm thick for optimal performance.

Q: Can this be sharpened if it becomes dull?

A: Due to the complex stepped geometry and titanium coating, we recommend replacing the bit rather than attempting to sharpen it manually.

Q: Does the package come with a storage case?

A: Yes, each unit includes a durable plastic protective case to keep the bit safe and organized when not in use.

Explore your interests

All Categories
Best Seller (30)
New List (30)
Over-Toilet Storage Rack for Bathroom - Multi-Functional No-Drill Organizer

Over-Toilet Storage Rack for Bathroom - Multi-Functional No-Drill Organizer

$14.70

Wuxi 3D Five-Axis CNC High-Pressure Waterjet Cutting Machine for Metal, Glass, and Stone Inlay Patterns

Wuxi 3D Five-Axis CNC High-Pressure Waterjet Cutting Machine for Metal, Glass, and Stone Inlay Patterns

$431,980.00

Zodiac Dragon & Snake Rattle Toy for Babies, Sheepskin Drum Head, Solid Wood, Non-Toxic, Chewable, Sensory Grasping Toy for 6+ Months

Zodiac Dragon & Snake Rattle Toy for Babies, Sheepskin Drum Head, Solid Wood, Non-Toxic, Chewable, Sensory Grasping Toy for 6+ Months

$14.80

Menghu Custom Plush Squeaky Keychain with Custom Voice - DIY Anime Comic Fabric Mini Pillow Charm

Menghu Custom Plush Squeaky Keychain with Custom Voice - DIY Anime Comic Fabric Mini Pillow Charm

$12.80

Hell Jazz Drumming: Ultimate Drum Skill Training Institute - Complete Rock Drum Kit Manual and Tutorial for Drummers

Hell Jazz Drumming: Ultimate Drum Skill Training Institute - Complete Rock Drum Kit Manual and Tutorial for Drummers

$58.00

Custom Calligraphy Felt Mat for Chinese Painting and Brush Writing – Wool Felt Desk Pad or Wall Mat for Four Treasures of the Study

Custom Calligraphy Felt Mat for Chinese Painting and Brush Writing – Wool Felt Desk Pad or Wall Mat for Four Treasures of the Study

$9,022.00

Mini Watercolor Paint Notebook – Compact, Portable, Thickened Sketchbook for Markers, Ideal for Students and Casual Drawing

Mini Watercolor Paint Notebook – Compact, Portable, Thickened Sketchbook for Markers, Ideal for Students and Casual Drawing

$7.58

Manufacturer Sales 35-Piece Automotive Repair Tool Set, 1/2" Pneumatic Socket Set, Extended Impact Sockets

Manufacturer Sales 35-Piece Automotive Repair Tool Set, 1/2" Pneumatic Socket Set, Extended Impact Sockets

$165.00

Portable Invisible Aligner Case for Invisalign and Children's Orthodontic Retainers

Portable Invisible Aligner Case for Invisalign and Children's Orthodontic Retainers

$12.50

Paper Blending Stumps Set for Art Highlighting and Sketching, Professional Smudging Tools for Fine Arts Students

Paper Blending Stumps Set for Art Highlighting and Sketching, Professional Smudging Tools for Fine Arts Students

$2.65

Sketch Blending Stump and Knife Set - Art Supplies Including Paper Stumps, Makeup Sponges, Highlight Detail Tools, Charcoal Wipers, and Scraper Kit

Sketch Blending Stump and Knife Set - Art Supplies Including Paper Stumps, Makeup Sponges, Highlight Detail Tools, Charcoal Wipers, and Scraper Kit

$4.08

New Children's Potty Training Seat for Boys and Girls

New Children's Potty Training Seat for Boys and Girls

$28.00

FRP Spray Purification Tower for Thermal Power Plant Exhaust Gas Treatment - Desulfurization, Denitrification, Acid Mist Scrubber, FRP Chimney

FRP Spray Purification Tower for Thermal Power Plant Exhaust Gas Treatment - Desulfurization, Denitrification, Acid Mist Scrubber, FRP Chimney

$680.00

Handmade Natural Gourd Cute Smiley Face Rattle Baby Soothing Toy Safe for Chewing No Paint

Handmade Natural Gourd Cute Smiley Face Rattle Baby Soothing Toy Safe for Chewing No Paint

$32.30

Baby Wooden Rattle Toy - Chewable Traditional Goat Skin Shaker for Newborn Boys and Girls

Baby Wooden Rattle Toy - Chewable Traditional Goat Skin Shaker for Newborn Boys and Girls

$9.80

Yuanhengtong Whiteness Meter WSB-1/2Y/3Y/CY, Digital Whiteness Tester for Paper, Flour, Paint, Plastic, Ceramics, and Textiles

Yuanhengtong Whiteness Meter WSB-1/2Y/3Y/CY, Digital Whiteness Tester for Paper, Flour, Paint, Plastic, Ceramics, and Textiles

$1,055.80

G460 Fast-Drying Glue for Plastics Bonds PP PVC ABS PC PS Strong Low-Whitening Transparent Instant Adhesive

G460 Fast-Drying Glue for Plastics Bonds PP PVC ABS PC PS Strong Low-Whitening Transparent Instant Adhesive

$38.80

Children's Drawing Board Blackboard Whiteboard Accessories Colorful Whiteboard Markers Chalk Set Magnetic Stickers Toys Letters Numbers Eraser

Children's Drawing Board Blackboard Whiteboard Accessories Colorful Whiteboard Markers Chalk Set Magnetic Stickers Toys Letters Numbers Eraser

$3.00

Automatic Retractable Air Hose Reel - Pneumatic Hose Drum for Auto Repair, Detailing, and Water/Electric Applications

Automatic Retractable Air Hose Reel - Pneumatic Hose Drum for Auto Repair, Detailing, and Water/Electric Applications

$295.00

Sheepskin Rattle Traditional Handmade Baby Safe to Chew Brass Stick Bell Clapper Rattle Intangible Cultural Heritage Leather Newborn

Sheepskin Rattle Traditional Handmade Baby Safe to Chew Brass Stick Bell Clapper Rattle Intangible Cultural Heritage Leather Newborn

$16.00

Glass Reactor with Multi-Function Stirring and High-Temperature Resistance - Double-Layer Glass Reactor from Manufacturer, Customizable

Glass Reactor with Multi-Function Stirring and High-Temperature Resistance - Double-Layer Glass Reactor from Manufacturer, Customizable

$85.00

Charcoal Blending Stump Set for Sketching - Highlight, Shadow, and Detail Tools with Replaceable Sponge Tips for Artists

Charcoal Blending Stump Set for Sketching - Highlight, Shadow, and Detail Tools with Replaceable Sponge Tips for Artists

$4.80

Minimalist Stainless Steel Toothbrush Holder with Drainage - Ins Style Bathroom Organizer for Cosmetics

Minimalist Stainless Steel Toothbrush Holder with Drainage - Ins Style Bathroom Organizer for Cosmetics

$10.40

Qili Automotive Paint Degreasing Cloth – Glue/Dust Removal Paper, Industrial Wiping & Absorbent Paper

Qili Automotive Paint Degreasing Cloth – Glue/Dust Removal Paper, Industrial Wiping & Absorbent Paper

$313.12

Qingzhu Sketch Blending Cotton - Professional Sponge Balls & Paper Stumps for Art Students, Colorful Thick Absorbent Drawing Tools

Qingzhu Sketch Blending Cotton - Professional Sponge Balls & Paper Stumps for Art Students, Colorful Thick Absorbent Drawing Tools

$4.38

Electric Scooter Dashboard Cover for Aima Metaverse PLAY Instrument Panel Screen Protector Waterproof Case

Electric Scooter Dashboard Cover for Aima Metaverse PLAY Instrument Panel Screen Protector Waterproof Case

$13.50

Continental Tire 265/40R22 106V XL FR CSC5 SUV - Compatible with BYD Tang (Removed from Vehicle)

Continental Tire 265/40R22 106V XL FR CSC5 SUV - Compatible with BYD Tang (Removed from Vehicle)

$618.00

Yandi Retainer Storage Case for Kids - Lightweight Portable Box for Orthodontic Aligners and Dentures

Yandi Retainer Storage Case for Kids - Lightweight Portable Box for Orthodontic Aligners and Dentures

$8.42

Zhizhi Manshu Wen Zhengming Small Regular Script Collection of Twelve Ancient Texts: Yueyang Tower Record, Peach Blossom Spring Record, Farewell to Dongyang Ma Sheng Xu

Zhizhi Manshu Wen Zhengming Small Regular Script Collection of Twelve Ancient Texts: Yueyang Tower Record, Peach Blossom Spring Record, Farewell to Dongyang Ma Sheng Xu

$68.00

Factory Direct Rubber Molding Tools - Custom Production & Processing

Factory Direct Rubber Molding Tools - Custom Production & Processing

$2,280.00