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

View More
All Categories
Best Seller (30)
New List (30)
New 968 Fast-Drying Super Glue - Strong Bond for Metal, Magnets, Rubber, and Aluminum Alloy

New 968 Fast-Drying Super Glue - Strong Bond for Metal, Magnets, Rubber, and Aluminum Alloy

$18.20

German Imported Stone Removal Hook Car Tire Stone Cleaning Tool Vehicle Foldable Multi-Function Stone Remover

German Imported Stone Removal Hook Car Tire Stone Cleaning Tool Vehicle Foldable Multi-Function Stone Remover

$11.34

[10% Off for 2 Items] Double-Sided Wool Felt Mat for Calligraphy and Painting, Student Practice Sheet, Brush Writing Desk Pad, Four Treasures of the Study Set

[10% Off for 2 Items] Double-Sided Wool Felt Mat for Calligraphy and Painting, Student Practice Sheet, Brush Writing Desk Pad, Four Treasures of the Study Set

$6.63

In Stock Special Offer: QS18VP6LLPQ8 Sensor - Price Negotiable

In Stock Special Offer: QS18VP6LLPQ8 Sensor - Price Negotiable

$600.00

Broccoli Vegetable Washing Machine for Pre-made Dishes, Water Bath Cleaning Equipment with Bubble System for Herbs and Export-Grade Produce

Broccoli Vegetable Washing Machine for Pre-made Dishes, Water Bath Cleaning Equipment with Bubble System for Herbs and Export-Grade Produce

$615.00

Hongkedou Oxford Fabric Bag-in-Bag Divider Insert, Stiff Makeup Organizer with Zipper, Waterproof Small Women's Pouch

Hongkedou Oxford Fabric Bag-in-Bag Divider Insert, Stiff Makeup Organizer with Zipper, Waterproof Small Women's Pouch

$22.00

Pad Printing Machine Accessories: Positioning Clamps, T-Shaped Holders, and Locking Irons

Pad Printing Machine Accessories: Positioning Clamps, T-Shaped Holders, and Locking Irons

$0.60

Japanese High-Concentration Oxalic Acid Toilet Cleaner, Powerful Urine Scale Remover and Stain Eliminator

Japanese High-Concentration Oxalic Acid Toilet Cleaner, Powerful Urine Scale Remover and Stain Eliminator

$23.82

Biliansheng No-Shave Hair Transplant - Hairline and Crown Thinning Treatment, Hair Loss Detection Service

Biliansheng No-Shave Hair Transplant - Hairline and Crown Thinning Treatment, Hair Loss Detection Service

$86.00

Laorentou Paper Blending Stump for Sketching - Professional Art Supply for Highlighting and Pastel Work

Laorentou Paper Blending Stump for Sketching - Professional Art Supply for Highlighting and Pastel Work

$6.80

Fast-Drying Glue for ABS Plastic - Transparent, High-Strength, Odorless, Non-Whitening Instant Adhesive for ABS and PC Plastics

Fast-Drying Glue for ABS Plastic - Transparent, High-Strength, Odorless, Non-Whitening Instant Adhesive for ABS and PC Plastics

$58.96

Manufacturer Supply Oxygen Absorber Oxygen Generator Stable Performance Hydrogen-Rich Machine Hydrogen Generator

Manufacturer Supply Oxygen Absorber Oxygen Generator Stable Performance Hydrogen-Rich Machine Hydrogen Generator

$5,058.00

POPMART CRYBABY Vacation Mode On - Vinyl Plush Keychain Blind Box

POPMART CRYBABY Vacation Mode On - Vinyl Plush Keychain Blind Box

$106.99

Portable Travel Potty for Kids, Outdoor Toilet, Foldable Car Seat Potty for Babies, Travel Urinal for Outdoors

Portable Travel Potty for Kids, Outdoor Toilet, Foldable Car Seat Potty for Babies, Travel Urinal for Outdoors

$29.90

Wen Zhengming Red Cliff & Tengwang Pavilion Copybook - 2-Volume Running Script Long Scroll for Calligraphy Practice

Wen Zhengming Red Cliff & Tengwang Pavilion Copybook - 2-Volume Running Script Long Scroll for Calligraphy Practice

$22.00

Commercial Food Warmer Cabinet, Double-Layer Display Unit for Western Restaurants and Burger Shops, Wholesale Two-Tier Heating Showcase

Commercial Food Warmer Cabinet, Double-Layer Display Unit for Western Restaurants and Burger Shops, Wholesale Two-Tier Heating Showcase

$2,527.00

Electromagnetic Pulse Valve Blow-Type Submerged Right-Angle Explosion-Proof Solenoid Valve

Electromagnetic Pulse Valve Blow-Type Submerged Right-Angle Explosion-Proof Solenoid Valve

$152.00

Pure Brass Backflow Incense Holder with Wooden Base, Incense Burner Stand for Sandalwood

Pure Brass Backflow Incense Holder with Wooden Base, Incense Burner Stand for Sandalwood

$4.17

Multi-Function Over-Toilet Freestanding Shelf - Bathroom Storage Rack for Sink Area and Behind-Toilet Space

Multi-Function Over-Toilet Freestanding Shelf - Bathroom Storage Rack for Sink Area and Behind-Toilet Space

$958.10

Catalytic Combustion Equipment RCO Activated Carbon Adsorption Desorption Integrated Machine Industrial Plastic Waste Gas Purification Treatment Device

Catalytic Combustion Equipment RCO Activated Carbon Adsorption Desorption Integrated Machine Industrial Plastic Waste Gas Purification Treatment Device

$4,400.00

RoHS Ten Hazardous Substance Alloy Analysis and Coating Thickness Gauge - EDXRF Environmental Testing Instrument

RoHS Ten Hazardous Substance Alloy Analysis and Coating Thickness Gauge - EDXRF Environmental Testing Instrument

$10,856.00

Outes Air Energy Water Heater for Home Heating, Inverter Floor Heating & Central AC All-in-One Unit

Outes Air Energy Water Heater for Home Heating, Inverter Floor Heating & Central AC All-in-One Unit

$18,000.00

2025 Limited Edition Colorful Mesh Tofu Bag - Ultra-Light Breathable Multi-Purpose Storage Pouch

2025 Limited Edition Colorful Mesh Tofu Bag - Ultra-Light Breathable Multi-Purpose Storage Pouch

$11.90

Liupintang Calligraphy Felt Mat – Traditional Chinese Style Cultural Creative Painted Desk Pad for Brush Writing, Practice, and Ink Painting

Liupintang Calligraphy Felt Mat – Traditional Chinese Style Cultural Creative Painted Desk Pad for Brush Writing, Practice, and Ink Painting

$19.30

Shengneng Commercial Air Source Heat Pump Host KFXRS-40â…¡

Shengneng Commercial Air Source Heat Pump Host KFXRS-40â…¡

$45,000.00

Yiyi Electric Pad Printing Ink Cups (150/175/300/380) - Magnetic Doctor Blade Ink Wells for Coding Machines

Yiyi Electric Pad Printing Ink Cups (150/175/300/380) - Magnetic Doctor Blade Ink Wells for Coding Machines

$68.00

ML-150 Standard Material Leveling Machine - Economical and Practical Model

ML-150 Standard Material Leveling Machine - Economical and Practical Model

$11,780.00

3-in-1 Multi-Function Paint Brush Washer with Palette Compartments for Art Students

3-in-1 Multi-Function Paint Brush Washer with Palette Compartments for Art Students

$5.02

Silicone Dental Retainer Case - Portable Storage Box for Orthodontic Aligners & Dentures

Silicone Dental Retainer Case - Portable Storage Box for Orthodontic Aligners & Dentures

$19.30

Natural Crystal Raw Stone Aroma Diffuser Ornament Rose Quartz Crushed Stone Rough Ore Home Flameless Aromatherapy Healing Gift

Natural Crystal Raw Stone Aroma Diffuser Ornament Rose Quartz Crushed Stone Rough Ore Home Flameless Aromatherapy Healing Gift

$3.90