Milwaukee
Milwaukee Tool Step Bit 4mm - 20mm
- SKU:
- MLW48-89-9320
- Availability:
- Usually Ships Same Day
- Weight:
- 0.17 LBS
Description
DUTY®
4–20 mm
Step Drill Bit
Select 4–20 mm hole sizes from a stepped cutting profile with visible size references.
Product Overview
Enlarge a hole through the marked steps without changing cutters. Confirm the required diameter.
Laser marks identify size, and black oxide aids durability. Clamp work before enlarging holes.
- Size choices9 finished hole sizes.
- Clear stop pointLaser-marked sizes.
- Controlled startsStart tip helps limit walking.
- Heat managementCoated cutting geometry.
Technical Specifications
- Size range
- 4–20 mm
- Steps
- 9
- Finish
- Black oxide
- Bit steel
- High speed
- Size marks
- Laser etched
- Work materials
- Metal / plastic
Choose the Correct Fit
Check the exact metric diameter required by the fitting or fastener before choosing a step.
Match the drill setting and lubrication to the work material. Clamp thin stock so it cannot spin.
Installation & Care
Seat the shank securely in the drill chuck. Start square and stop advancing once the chosen step reaches the required depth.
Allow the cutter to cool before handling it. Clear chips safely and inspect the cutting edges before the next hole.
Small Details. Big Jobsite Energy.
Get set. Stay focused. Make your next move count.
THE NEXT JOB.
Ask Willy:
Need a step-bit match? Tell Willy the hole sizes, material, sheet thickness and drill you plan to use.
Important Product Questions
Which hole sizes does this bit provide?
It has 9 steps covering 4–20 mm. Use the etched size marks to select the required diameter.
What speed should I use?
Select a drill speed suitable for the work material and hole diameter. This stepped format requires controlled feed so the next size does not enter the work.
How do I avoid making the hole too large?
Watch the laser size references and stop feeding when the chosen step finishes the hole. The next step enlarges the diameter if advanced into the work.
