Which materials is this Milwaukee step drill bit suitable for?

Engineered with M35 cobalt steel and an AlCrN coating, it is designed for drilling steel and stainless steel.

What hole diameters can be drilled with this bit?

It drills in steps ranging from 6 mm to 32 mm, matching hole sizes from M6 to M32.

Do you need to pilot drill before using this bit?

No, the Rapid Strike tip enables accurate, direct starting without walking or pre-drilling.

What type of shank does this step drill bit have?

It features an 8 mm 3-flat shank that prevents slipping inside the drill chuck.

How are the step increments identified?

Step sizes are laser-engraved onto the bit for clear, durable visibility while drilling.

MILWAUKEE 48899380 step drill Cobalt AlCrN M6-M32

Name: MILWAUKEE 48899380 step drill Cobalt AlCrN M6-M32
Brand: MILWAUKEE
SKU: 08088076
Price: 152.8 EUR
Availability: PreOrder

Supplier number: MILWAUKEE 48899380 | EAN 0045242567652

Recommended Retail Price €323.86

152.80 tax incl.

€126.28 excl. VAT (incl. all environmental contributions)

On order: delivered from 16/10/2026

pack

Ordered before 20:00 - delivered as of 16/10/2026
Free shipping
Delivery by DHL
Delivered from Belgium

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How does it work?

Buy Milwaukee products with a total order value of at least €250 excl. VAT.
For a total order value of €250 excl. VAT up to but excluding €500 excl. VAT, you receive a FREE Milwaukee 12-piece Tri-Lobe screwdriver set (4932472003) worth €55.90.
For a total order value of €500 excl. VAT up to but excluding €750 excl. VAT, you receive a FREE Milwaukee M18 125 mm Random Orbital Sander cordless random orbital sander (4933464228) worth €168.90.
For a total order value of €750 excl. VAT or more, you receive a FREE Milwaukee M18 FUEL 125 mm cordless angle grinder with slide switch and brake worth €357.90.
The free item is automatically added to your order. No registration is required.
This promotion cannot be combined with the ongoing Milwaukee Cashback Promotion on Milwaukee hand tools. An invoice for which you receive a free Buy More, Get More gift therefore cannot also be submitted for the Milwaukee hand tools cashback promotion.
The promotion is valid from 01.10.2026 to 31.10.2026.
Milwaukee Buy More, Get More deals are recognisable by the promotion label on the product page. Click the label to view all available deals.

Accurate drilling with Milwaukee

Practical benefits

Extended stainless steel life: The AlCrN coating and cobalt steel base provide exceptional wear resistance in hard metals.
Precise start without walking: You achieve accurate starts without center punching or wandering thanks to the specialized tip design.
Slip-free chuck grip: The 3-flat shank prevents rotational slipping and ensures maximum torque transfer during heavy drilling.

In a nutshell

The right choise for

With the Milwaukee 48899380 step drill bit, you drill clean and accurate holes from 6 mm to 32 mm without switching bits. Built from M35 cobalt steel with a durable AlCrN coating, it provides high heat resistance and extended tool life in demanding steel and stainless steel applications. The Rapid Strike tip ensures fast, precise starting without wandering or the need for pre-drilling. Laser-engraved step markings offer clear visibility while drilling, and the 8 mm 3-flat shank prevents slipping in the chuck under heavy loads.

Product information FAQ

€152.80

tax incl.

Key features according to our expert

Smallest diameter: 6 mm
Largest diameter: 32 mm

Product description

New Aluminium Chromium Nitride (AlCrN) coating for 10x more life vs. MILWAUKEE standard step drill.
For steel and stainless steel.
RAPID STRIKE TIP: Accurate start without walking and fast drilling without the need to pre-drill the material.
Special tip and step geometry for jam-free performance - less risk of drill snagging when used with cordless tools and also prevents deformation of the drilled material.
Optimised 2 flute ground sharpened edge geometry for 2 x faster and smoother cutting.
With 3 flat secure grip to prevent step drill from slipping in the chuck and ensure maximum transmission of torque.
Laser engraved size markings for best long term visibility.

All Features

Smallest diameter: 6 mm
Largest diameter: 32 mm
Number of steps: 14
Overall length (mm): 90
Shaft diameter (mm): 10

Brand MILWAUKEE
08088076
EAN 0045242567652
Supplier number MILWAUKEE 48899380

Frequently asked questions about this product

Answered by specialists

Which materials is this Milwaukee step drill bit suitable for?: Engineered with M35 cobalt steel and an AlCrN coating, it is designed for drilling steel and stainless steel.
What hole diameters can be drilled with this bit?: It drills in steps ranging from 6 mm to 32 mm, matching hole sizes from M6 to M32.
Do you need to pilot drill before using this bit?: No, the Rapid Strike tip enables accurate, direct starting without walking or pre-drilling.
What type of shank does this step drill bit have?: It features an 8 mm 3-flat shank that prevents slipping inside the drill chuck.
How are the step increments identified?: Step sizes are laser-engraved onto the bit for clear, durable visibility while drilling.