Which machines are compatible with this hammer drill bit?

This bit features an SDS-Max shank and fits all rotary hammers with an SDS-Max chuck. It is not compatible with SDS-Plus tools.

What are the dimensions of this MX4 drill bit?

The bit has a 50 mm diameter, an overall length of 570 mm, and a working cutting length of 450 mm.

Is this drill bit suitable for reinforced concrete?

Yes, the 4-cutter solid carbide head is designed with rebar chamfers to prevent jamming when hitting steel reinforcement.

What is the advantage of the 4-cutter head design?

The 4 cutting edges ensure accurate round holes, reduce vibration, and maximize dust extraction during heavy-duty drilling.

Is pre-drilling required for this drill length?

For drill bits longer than 400 mm, pre-drilling with a shorter drill bit of the same diameter is recommended.

MILWAUKEE 4932430731 SDS-Max MX4 hammer drill 4-coil 50x570mm

Name: MILWAUKEE 4932430731 SDS-Max MX4 hammer drill 4-coil 50x570mm
Brand: MILWAUKEE
SKU: 02879931
Price: 210.2 EUR
Availability: PreOrder

Supplier number: MILWAUKEE 4932430731 | EAN 4002395383924

Recommended Retail Price €450.54

210.20 tax incl.

€173.72 excl. VAT (incl. all environmental contributions)

On order: delivered from 31/10/2026

Ordered before 20:00 - delivered as of 31/10/2026
Free shipping
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Heavy drilling in reinforced concrete

Practical benefits

Tough Milwaukee four-cutter design: You drill smoothly through tough concrete and rebar without jamming thanks to the symmetrical solid carbide head.
Rapid dust removal flutes: The four-flute geometry clears debris quickly to reduce heat buildup during deep, demanding boreholes.
Precise spot drilling control: The sharp centering tip keeps your bit securely aligned and prevents wandering when starting each hole.

In a nutshell

The right choise for

Tackle heavy-duty penetrations in reinforced concrete and dense masonry with the Milwaukee SDS-Max MX4 hammer drill bit in 50x570 mm. Featuring a symmetrical four-cutter solid carbide head, it powers through rebar without jamming while reducing vibration to deliver accurate, round holes. The four-flute geometry clears drilling dust rapidly, keeping friction and heat buildup low throughout deep drilling up to its 450 mm working length. With the sharp centering tip, you can start drilling with pinpoint precision without wandering on hard surfaces.

Product information FAQ

€210.20

tax incl.

Key features according to our expert

Diameter: 50 mm
Cutting length: 450 mm
Drill bit type: Hammer drill bit
Overall length: 570 mm
Shank type: SDS-max
Material (drill bit): Carbide tip
Number of cutting edges: 4

Product description

Large carbide tip with patented rebar chamfers. Ensures lower vibration and optimised drilling performance when hitting reinforced steel equalling longer life time.
Especially developed robust head geometry with optimum 4 x 90° symmetry of carbide tip. Reduces jamming up on hitting reinforcing steel.
Centering point with 130° point angle. Easy spot drilling with pinpoint accuracy and ensures optimum guidance during drilling.
Big, robust secondary cutter with dynamic, curved cutting edge. Supports the primary cutter for faster drilling.
Shorter spiral windings. For faster transport of drilling dust from the head to the flute = Less wear and heat build up at the tip.
Innovative, unique carbide tip. With more carbide on all diameters and extra carbide on Ø >32 mm.
Wear mark on both sides of primary cutter. Guarantees diameter accuracy i.e. for anchor fittings. Life time indicator in warranty cases.
Patented reinforced flute geometry. Lower vibrations for smoother drilling. Stronger flute means less breakages. Better transfer of hammer energy to the tip.
Deep flute shoulders. High volume dust removal for optimum drilling speed less wear and heat build up.
Low vibration drilling performance. Comfortable drilling ensures less stress for man and machine.
Special surface treatment. Shot blasting provides a smooth surface and densifies the surface structure and makes the bit more wear resistant.
PGM conformity. Guarantees precise holes for anchor fitting over the entire life time of the drill bit.

All Features

Diameter: 50 mm
Cutting length: 450 mm
Drill bit type: Hammer drill bit
Overall length: 570 mm
Shank type: SDS-max
Material (drill bit): Carbide tip
Number of cutting edges: 4
Overall length (mm): 570
Working length (mm): 450

Brand MILWAUKEE
02879931
EAN 4002395383924
Supplier number MILWAUKEE 4932430731

Frequently asked questions about this product

Answered by specialists

Which machines are compatible with this hammer drill bit?: This bit features an SDS-Max shank and fits all rotary hammers with an SDS-Max chuck. It is not compatible with SDS-Plus tools.
What are the dimensions of this MX4 drill bit?: The bit has a 50 mm diameter, an overall length of 570 mm, and a working cutting length of 450 mm.
Is this drill bit suitable for reinforced concrete?: Yes, the 4-cutter solid carbide head is designed with rebar chamfers to prevent jamming when hitting steel reinforcement.
What is the advantage of the 4-cutter head design?: The 4 cutting edges ensure accurate round holes, reduce vibration, and maximize dust extraction during heavy-duty drilling.
Is pre-drilling required for this drill length?: For drill bits longer than 400 mm, pre-drilling with a shorter drill bit of the same diameter is recommended.