Which tools are compatible with this step drill bit?

The 1/4-inch hex shank fits both impact drivers and standard drill drivers securely.

Which hole diameters can you drill with this bit?

It features 9 steps in 2 mm increments, covering hole sizes from 4 mm up to 20 mm.

Do you need to pre-drill pilot holes before use?

No, the precision tip starts immediately without walking, eliminating the need for pre-drilling.

What materials can this step drill bit be used on?

It is engineered for clean and precise drilling in sheet metal and plastic materials.

What benefit does the TiAlN coating provide?

The TiAlN coating reduces heat build-up during drilling, significantly extending tool life.

MILWAUKEE 48899263 SHOCKWAVE IMPACT DUTY step drill ShW 4-20 mm (9 increments of 2mm)

Name: MILWAUKEE 48899263 SHOCKWAVE IMPACT DUTY step drill ShW 4-20 mm (9 increments of 2mm)
Brand: MILWAUKEE
SKU: 08069659
Price: 45.95 EUR
Availability: PreOrder

Supplier number: MILWAUKEE 48899263 | EAN 0045242505180

Recommended Retail Price €110.05

45.95 tax incl.

€37.97 excl. VAT (incl. all environmental contributions)

On order: delivered from 13/10/2026

Ordered before 20:00 - delivered as of 13/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

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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.
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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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Fast and precise metal drilling performance

Practical benefits

Shock-absorbing hex drive shank: The 1/4" hex shank features an engineered shock zone to prevent premature breakage during heavy impact driver use.
Milwaukee precision starting tip: You start drilling accurately without walking or pilot holes thanks to the aggressive centering point design.
Heat-reducing durable coating: The titanium aluminum nitride coating reduces friction and thermal buildup, delivering extended service life in demanding metals.

In a nutshell

The right choise for

With the Milwaukee Shockwave Impact Duty step drill bit, you drill multiple hole sizes quickly and accurately in sheet metal and plastic without switching bits. The precision centering tip bites into the workpiece immediately, allowing you to start drilling without pilot holes or walking. Thanks to the 1/4-inch hex shank with an engineered shock zone, you can use it reliably in both standard drills and high-torque impact drivers without premature breakage. The heat-reducing TiAlN coating minimizes friction and thermal buildup, significantly extending tool life. Featuring 9 steps from 4 mm up to 20 mm, it helps you enlarge holes and debur edges with total control.

Product information FAQ

€45.95

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
08069659
EAN 0045242505180
Supplier number MILWAUKEE 48899263

Frequently asked questions about this product

Answered by specialists

Which tools are compatible with this step drill bit?: The 1/4-inch hex shank fits both impact drivers and standard drill drivers securely.
Which hole diameters can you drill with this bit?: It features 9 steps in 2 mm increments, covering hole sizes from 4 mm up to 20 mm.
Do you need to pre-drill pilot holes before use?: No, the precision tip starts immediately without walking, eliminating the need for pre-drilling.
What materials can this step drill bit be used on?: It is engineered for clean and precise drilling in sheet metal and plastic materials.
What benefit does the TiAlN coating provide?: The TiAlN coating reduces heat build-up during drilling, significantly extending tool life.