Replace One Worn Step—Not the Entire Drill Bit

Traditional step bits must be replaced when only one cutting section becomes dull. This innovative modular system uses six individually replaceable cutting rings, helping extend tool life while giving you greater control over your drilling setup.

One Drill Bit. Six Replaceable Sizes.

Create clean, accurately sized holes with six graduated cutting rings:

1/4 in / 6 mm
3/8 in / 10 mm
1/2 in / 13 mm
3/4 in / 19 mm
1 in / 25 mm
1-1/4 in / 32 mm

Replace Only the Worn Ring

If one frequently used cutting step becomes dull or damaged, remove and replace that ring instead of discarding the complete drill bit.

That means less waste, lower replacement cost and more value from every tool.

Customize Your Cutting Setup

Arrange compatible rings on the central arbor to create a drilling sequence suited to your project. Install only the sizes you need or use the complete six-ring configuration.

Secure Keyed Alignment

Each cutting ring features an interlocking alignment tab that keeps the rings properly positioned and maintains a continuous spiral chip-relief path.

Quick-Lock Collar

The knurled locking collar and compression ring secure the modular stack firmly against the central arbor for stable operation.

Clean, Controlled Cutting

The split-point pilot tip helps reduce wandering when starting a hole, while polished cutting edges support smooth, progressive enlargement through compatible materials.

Titanium-Coated Cutting Rings

The black-and-gold coated rings provide a durable cutting surface with polished edges for improved wear resistance and reduced friction.

Universal 1/4-Inch Hex Shank

The standard hex connection fits many common cordless drills and compatible drivers used in home workshops and professional tool kits.

Ideal for Multiple Projects

Designed for drilling or enlarging holes in compatible thin materials such as:

Sheet Metal
Aluminum Panels
Electrical Boxes
Automotive Brackets
HVAC Ductwork
Plastic Enclosures

Dedicated Ring-Removal Tool

The included tool makes it easier to release the locking collar and remove individual cutting rings for replacement, cleaning or reconfiguration.

Key Features

Six individually replaceable cutting rings
Customizable modular configuration
Interlocking keyed alignment system
Continuous chip-relief flute
Replaceable split-point pilot tip
Quick-lock compression collar
Black-and-gold coated cutting surfaces
Universal 1/4-inch hex shank
Protective storage case included

Suggested Product Dimensions

Assembled Length: 4.8 in / 12.2 cm
Maximum Cutting Diameter: 1-1/4 in / 32 mm
Hex Shank: 1/4 in
Ring-Removal Tool: 7.1 in / 18.0 cm
Storage Case: 8.7 × 5.2 × 2.1 in / 22.1 × 13.2 × 5.3 cm

What’s Included

1× Central Drill Arbor
6× Replaceable Cutting Rings
1× Split-Point Pilot Tip
1× Spare Pilot Tip
1× Quick-Lock Collar
1× Ring-Removal Tool
1× Protective Storage Case

Customize. Replace. Keep Drilling.

Stop replacing an entire step bit because one cutting edge is worn. Upgrade to a modular system built for easier maintenance, flexible sizing and longer-lasting value.

UPGRADE YOUR TOOLBOX TODAY

Concept product: dimensions, compatibility and performance specifications are approximate and should be confirmed before manufacturing or retail use. Secure the workpiece and wear appropriate eye and hand protection during drilling.