Which machines are compatible with this step drill bit?

With its 1/4" hex shank, it fits both standard drill drivers and impact drivers.

What hole sizes can you drill with this step bit?

It drills hole sizes from 4 mm up to 12 mm across 9 steps with 1 mm increments.

Can this step bit handle high-torque impact drivers?

Yes, the Shockwave Impact Duty design with Shockzone body absorbs peak torque to prevent shank breakage.

What is the benefit of the TiAlN coating?

The titanium aluminium nitride coating reduces heat build-up and provides up to 5 times longer tool life.

How do you identify the drill diameter during use?

Laser-etched markings on the bit provide clear identification while working.

MILWAUKEE 48899261 SHOCKWAVE IMPACT DUTY step drill ShW 4-12 mm (9 increments of 1mm)

Name: MILWAUKEE 48899261 SHOCKWAVE IMPACT DUTY step drill ShW 4-12 mm (9 increments of 1mm)
Brand: MILWAUKEE
SKU: 08069658
Price: 39.8 EUR
Availability: PreOrder

Supplier number: MILWAUKEE 48899261 | EAN 0045242505166

Recommended Retail Price €84.16

39.80 tax incl.

€32.89 excl. VAT (incl. all environmental contributions)

On order: delivered from 10/11/2026

Ordered before 20:00 - delivered as of 10/11/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

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Accurate drilling without pilot holes

Practical benefits

Durable Milwaukee step drill: This Milwaukee step drill lets you produce holes from 4 to 12 mm across nine precise increments.
Reduced heat for durability: The titanium aluminium nitride coating effectively reduces friction and thermal buildup during demanding metal drilling tasks.
Fast starts without walking: The engineered tip prevents bit slipping on smooth metal surfaces, eliminating the need for pilot drilling.

In a nutshell

The right choise for

With the Milwaukee Shockwave Impact Duty step drill bit, you can produce clean, accurate holes from 4 to 12 mm without changing accessories. Designed with a 1/4 inch hex shank and a Shockzone body, it easily withstands peak torque when used in impact drivers and standard drill drivers. The engineered tip prevents slipping on thin sheet metal, stainless steel, and plastic, eliminating the need for pilot drilling. a titanium aluminium nitride coating minimises heat build-up to deliver up to 5 times longer tool life, while laser-etched markings ensure precision across all 9 steps.

Product information FAQ

€39.80

tax incl.

Key features according to our expert

Smallest diameter: 4 mm
Largest diameter: 12 mm
Shank size: 1/4 inch
Number of steps: 9
Product Range: Milwaukee SHOCKWAVE IMPACT DUTY

Product description

SHOCKWAVE Impact Duty step drills are designed to deliver best-in-class performance in impact drivers and also the versatility to be used in drill drivers.
The 1/4" Hex shank with an optimised SHOCKZONE ensures maximum durability by preventing early shank breaks.
New Titanium Aluminium Nitride coating helps to reduce heat generation for 5x more life.
RAPID STRIKE TIP: Accurate start without walking and fast drilling without the need to pre-drill the material.
Dual spiral flute design: Optimised for impact driver speed and for smooth, jam-free drilling.
Laser engraved markings: Do not wear away with time.

All Features

Smallest diameter: 4 mm
Largest diameter: 12 mm
Shank size: 1/4 inch
Number of steps: 9
Overall length (mm): 83
Product range: Milwaukee SHOCKWAVE IMPACT DUTY

Brand MILWAUKEE
08069658
EAN 0045242505166
Supplier number MILWAUKEE 48899261

Frequently asked questions about this product

Answered by specialists

Which machines are compatible with this step drill bit?: With its 1/4" hex shank, it fits both standard drill drivers and impact drivers.
What hole sizes can you drill with this step bit?: It drills hole sizes from 4 mm up to 12 mm across 9 steps with 1 mm increments.
Can this step bit handle high-torque impact drivers?: Yes, the Shockwave Impact Duty design with Shockzone body absorbs peak torque to prevent shank breakage.
What is the benefit of the TiAlN coating?: The titanium aluminium nitride coating reduces heat build-up and provides up to 5 times longer tool life.
How do you identify the drill diameter during use?: Laser-etched markings on the bit provide clear identification while working.