What hole sizes can you drill with this step drill bit?

This step drill bit allows you to drill holes ranging from 4 mm up to 30 mm in designated steps.

Is this step drill bit suitable for use with impact drivers?

Yes, with its 1/4" hex shank and Shockwave Impact Duty design, it withstands the high torque of impact drivers.

Can you use this step bit in a standard drill driver?

Yes, the universal 1/4" hex shank fits standard drill chucks, bit holders, and impact drivers.

What is the benefit of the titanium aluminium nitride coating?

The TiAlN coating reduces heat build-up and friction, significantly extending tool life when drilling metals.

Do you need to pre-drill a pilot hole before using this bit?

No, the Rapid Strike tip provides an accurate start without walking, eliminating the need for a pilot hole.

MILWAUKEE 48899265 SHOCKWAVE IMPACT DUTY step drill ShW 4-30 mm

Name: MILWAUKEE 48899265 SHOCKWAVE IMPACT DUTY step drill ShW 4-30 mm
Brand: MILWAUKEE
SKU: 08069660
Price: 95.4 EUR
Availability: PreOrder

Supplier number: MILWAUKEE 48899265 | EAN 0045242505203

Recommended Retail Price €194.27

95.40 tax incl.

€78.84 excl. VAT (incl. all environmental contributions)

On order: delivered from 09/10/2026

Ordered before 20:00 - delivered as of 09/10/2026
Shipping costs €6.99 VAT included | Free shipping for orders over a total amount of 125 euros
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.
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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.
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Clean and fast metal drilling

Practical benefits

Durable Milwaukee step drill: You benefit from an optimised hex shank designed to absorb peak torque and prevent premature breakage.
Coating reduces heat build-up: The titanium aluminium nitride coating significantly lowers friction to extend tool life during demanding jobs.
Precise start without walking: The engineered centering tip lets you begin drilling accurately right away without needing a pilot hole.

In a nutshell

The right choise for

With the Milwaukee Shockwave Impact Duty step drill bit, you drill fast, accurate holes from 4 mm to 30 mm in thin sheet steel, aluminium, brass, and plastic. Thanks to the 12 steps, you eliminate constant bit changes when creating cable and pipe penetrations. The 1/4 inch hex shank absorbs peak torque effortlessly, withstanding the demanding forces of impact drivers and cordless drills without premature breakage. With the Rapid Strike centering tip, you start drilling precisely where you want without walking or pre-drilling. Furthermore, the titanium aluminium nitride coating significantly reduces friction and heat build-up, extending tool life during intensive metal drilling.

Product information FAQ

€95.40

tax incl.

Key features according to our expert

Smallest diameter: 4 mm
Largest diameter: 30 mm
Shank size: 1/4 inch
Number of steps: 12
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: 30 mm
Shank size: 1/4 inch
Number of steps: 12
Overall length (mm): 95
Product range: Milwaukee SHOCKWAVE IMPACT DUTY

Brand MILWAUKEE
08069660
EAN 0045242505203
Supplier number MILWAUKEE 48899265

Frequently asked questions about this product

Answered by specialists

What hole sizes can you drill with this step drill bit?: This step drill bit allows you to drill holes ranging from 4 mm up to 30 mm in designated steps.
Is this step drill bit suitable for use with impact drivers?: Yes, with its 1/4" hex shank and Shockwave Impact Duty design, it withstands the high torque of impact drivers.
Can you use this step bit in a standard drill driver?: Yes, the universal 1/4" hex shank fits standard drill chucks, bit holders, and impact drivers.
What is the benefit of the titanium aluminium nitride coating?: The TiAlN coating reduces heat build-up and friction, significantly extending tool life when drilling metals.
Do you need to pre-drill a pilot hole before using this bit?: No, the Rapid Strike tip provides an accurate start without walking, eliminating the need for a pilot hole.