Which drill bit sizes are included in this Milwaukee 3-piece set?

The set includes three step drill bits with diameters of 4-12 mm, 4-20 mm, and 4-30 mm.

Can these step drill bits be used with impact drivers?

Yes, with the 1/4" Hex shank and Shockwave Impact Duty design, they are engineered for impact drivers as well as drills.

Which materials are suitable for drilling with these bits?

They are suitable for drilling into stainless steel, sheet metal, aluminium, brass, copper, and plastic.

Do you need to pre-drill a pilot hole before using these bits?

No, the Rapid Strike tip delivers an accurate start without walking, eliminating the need for pre-drilling.

What benefit does the TiAlN coating provide?

The Titanium Aluminium Nitride coating reduces heat build-up and significantly extends tool life under heavy use.

MILWAUKEE 48899266 SHOCKWAVE Impact Duty step drill bit set 3-piece

Name: MILWAUKEE 48899266 SHOCKWAVE Impact Duty step drill bit set 3-piece
Brand: MILWAUKEE
SKU: 03042053
Price: 157.4 EUR
Availability: InStock

Supplier number: MILWAUKEE 48899266 | EAN 0045242505210

Recommended Retail Price €375.71

157.40 tax incl.

€130.08 excl. VAT (incl. all environmental contributions)

On stock - immediately available

set

Ordered before 20:00 - delivered tomorrow 14/11/2026
Free shipping
Delivery by DHL
Delivered from Belgium

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Clean and fast metal drilling

Practical benefits

Robust Milwaukee hex shank: Engineered with a 1/4" hex shank, you can safely use each bit in impact drivers and drill drivers without breakages.
Accurate start without pre-drilling: The specialized centering tip prevents walking on smooth materials so you start every hole with precision.
Reduced friction and heat: The titanium aluminum nitride coating dissipates heat rapidly, delivering extended bit longevity across demanding metal applications.

In a nutshell

The right choise for

With the Milwaukee Shockwave Impact Duty 3-piece step drill bit set, you can drill clean, accurate holes through sheet metal, stainless steel, and plastic without pre-drilling. The specialized Rapid Strike tip centers instantly to prevent walking on slick surfaces, giving you precise starting control on every job. Engineered with a robust 1/4" hex shank, these bits fit impact drivers and drill drivers securely without risk of shank breakage. Featuring 4-12 mm, 4-20 mm, and 4-30 mm step bits, you have the right size ready for electrical knockouts and sheet metal fabrication, while the titanium aluminum nitride coating dissipates heat for extended bit life.

Product information FAQ

€157.40

In stock - tax incl.

Key features according to our expert

Smallest diameter: 4 mm
Largest diameter: 12 mm
Drill set type: Stair drill set
Quantity per set: 3
Product Range: Milwaukee SHOCKWAVE IMPACT DUTY

Supplied as standard

Includes 3 SHOCKWAVE step drill bits: 4 - 12 mm/1, 4 - 20 mm, 4 - 30 mm

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
Drill set type: Stair drill set
Quantity per set: 3
Product range: Milwaukee SHOCKWAVE IMPACT DUTY

Brand MILWAUKEE
03042053
EAN 0045242505210
Supplier number MILWAUKEE 48899266

Frequently asked questions about this product

Answered by specialists

Which drill bit sizes are included in this Milwaukee 3-piece set?: The set includes three step drill bits with diameters of 4-12 mm, 4-20 mm, and 4-30 mm.
Can these step drill bits be used with impact drivers?: Yes, with the 1/4" Hex shank and Shockwave Impact Duty design, they are engineered for impact drivers as well as drills.
Which materials are suitable for drilling with these bits?: They are suitable for drilling into stainless steel, sheet metal, aluminium, brass, copper, and plastic.
Do you need to pre-drill a pilot hole before using these bits?: No, the Rapid Strike tip delivers an accurate start without walking, eliminating the need for pre-drilling.
What benefit does the TiAlN coating provide?: The Titanium Aluminium Nitride coating reduces heat build-up and significantly extends tool life under heavy use.