Which hole diameters can you drill with this step drill bit?

This bit features 13 steps for hole diameters from 6 mm (for M6) up to 32 mm (for M32).

What shank size and design does this bit have?

It has a 10 mm shank with 3 flats to provide a secure grip and prevent slipping in the chuck.

Which materials can the Milwaukee 48899332 drill into?

It is suitable for sheet steel, non-ferrous metals, aluminium, copper, stainless steel, and plastics up to 4 mm thick.

Do you need to pilot drill before using this step bit?

No, the precision tip starts on contact and prevents walking, so no pre-drilling is required.

Is coolant recommended when drilling?

Yes, using a suitable cutting fluid or coolant significantly extends the working life of the drill bit.

MILWAUKEE 48899332 step drill bit M 6 - M 32

Name: MILWAUKEE 48899332 step drill bit M 6 - M 32
Brand: MILWAUKEE
SKU: 02883343
Price: 69.4 EUR
Availability: InStock

Supplier number: MILWAUKEE 48899332 | EAN 0045242344437

Recommended Retail Price €134.55

69.40 tax incl.

€57.36 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered as of 05/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

✆ Talk to a specialist

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.

Clean drilling with Milwaukee bits

Practical benefits

Thirteen sizes in one: You drill clean holes from 6 to 32 mm in metal and plastic without needing to swap your drill bit.
Secure grip without slipping: The 3-flat shank locks firmly into your drill chuck to prevent slipping under heavy rotational loads during drilling.
Fast starts without walking: The engineered starter tip prevents bit walking on smooth surfaces, giving you precise hole placement and reduced heat buildup.

In a nutshell

The right choise for

With the Milwaukee 48899332 step drill bit, you produce clean holes from 6 to 32 mm without constantly swapping drill bits. Thanks to thirteen precise steps, you easily drill cable entries in electrical enclosures or modify sheet metal using a single tool. The engineered starter tip bites instantly into the workpiece, preventing walking on smooth surfaces and making pilot drilling unnecessary. While stepping up diameters, it automatically deburrs the edges so you can bore through sheet steel, stainless steel, and plastics up to 4 mm thick without sheet distortion. The 10 mm shank with three flats locks securely into your chuck, eliminating slipping under heavy load.

Product information FAQ

€69.40

In stock - tax incl.

Key features according to our expert

Smallest diameter: 6 mm
Largest diameter: 32 mm
Shank size: 10 mm

Product description

Step drills are ideal for drilling into the following materials: - Ferrous & non-ferrous sheets metals, profiles and pipes. - Copper, brass and aluminium. - Stainless steel. - Plastics. - Maximum material thickness 4 mm. - To ensure best lifetime we recommend the use of a coolant.
Trades: - Electrical: drilling of panels and cabinets for cable gland installation. - Plumbing / HVAC: access holes for pipework and installation. - Metal workers / fabrication: various sizes and hole enlargement. - Automotive: holes for cable installation (mobile telephones, antennas, re-directing electrical wiring). - Maintenance repair operations: various applications, sizes and hole enlargement.
Step Drill advantages over conventional drill bits: - One drill bit to drill multiple sizes - Do more carry less! - Best option for enlarging existing holes. - More durable than twist drill bits, thick core resists breakage. - More accurate and less walking, tip starts on contact. - Clean burr free holes, less reaming required. - Drills plastic without splitting or cracking.
MILWAUKEE Advantages
Spot drill - Drill - Deburr - All in one go
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 high speed cordless tools and also prevents deformation of the drilled material.
Optimised 2 flute ground sharpened edge geometry for 2 x faster and smoother cutting.
Produced from custom engineered steel with black oxide coating for 4 x longer life.
Optimised for use with high speed cordless drills.
Laser engraved size markings for best long term visibility.
Each step is relief ground to drill and deburr automatically.
With 3 flat secure grip to prevent step drill from slipping in the chuck and ensure maximum transmission of torque.

All Features

Smallest diameter: 6 mm
Largest diameter: 32 mm
Shank size: 10 mm
Number of steps: 13
Overall length (mm): 92
Shaft diameter (mm): 10

Brand MILWAUKEE
02883343
EAN 0045242344437
Supplier number MILWAUKEE 48899332

Frequently asked questions about this product

Answered by specialists

Which hole diameters can you drill with this step drill bit?: This bit features 13 steps for hole diameters from 6 mm (for M6) up to 32 mm (for M32).
What shank size and design does this bit have?: It has a 10 mm shank with 3 flats to provide a secure grip and prevent slipping in the chuck.
Which materials can the Milwaukee 48899332 drill into?: It is suitable for sheet steel, non-ferrous metals, aluminium, copper, stainless steel, and plastics up to 4 mm thick.
Do you need to pilot drill before using this step bit?: No, the precision tip starts on contact and prevents walking, so no pre-drilling is required.
Is coolant recommended when drilling?: Yes, using a suitable cutting fluid or coolant significantly extends the working life of the drill bit.