Is this rotary hammer drill bit suitable for reinforced concrete?

Yes, the 4-cutter solid carbide head drills smoothly through concrete and resists jamming when hitting rebar.

Which machines are compatible with this drill bit?

It features a standard SDS-plus shank and fits any rotary hammer equipped with an SDS-plus chuck.

What are the dimensions of this drill bit?

This drill bit has a 28 mm diameter, an overall length of 250 mm, and a working length of 200 mm.

What is the advantage of the 4-cutter MX4 head?

The 4-cutter carbide geometry produces accurate round holes, reduces vibration, and delivers a longer service life.

What is the purpose of the 4-flute spiral design?

The 4 flutes extract drilling dust rapidly, reducing friction and minimizing heat build-up during drilling.

MILWAUKEE 4932399334 SDS-Plus MX4 hammer drill 4-coil 28x250mm

Name: MILWAUKEE 4932399334 SDS-Plus MX4 hammer drill 4-coil 28x250mm
Brand: MILWAUKEE
SKU: 02879814
Price: 55.2 EUR
Availability: InStock

Supplier number: MILWAUKEE 4932399334 | EAN 4002395359622

Recommended Retail Price €110.29

55.20 tax incl.

€45.62 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 2 products in stock.

Delivery by DHL

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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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Effortless drilling with Milwaukee MX4

Practical benefits

Perfectly round drilled holes: The symmetrical four-cutter geometry ensures you produce accurate, round holes in reinforced concrete for secure anchoring.
Fast removal of dust: The high-volume four-flute design extracts debris quickly so you can drill smoothly without jamming.
Maximum durability in rebar: The solid carbide tip withstands rebar strikes and resists wear, extending the life of your drill bit.

In a nutshell

The right choise for

With the Milwaukee SDS-Plus MX4 rotary hammer drill bit, you tackle demanding drilling jobs in masonry and reinforced concrete with total confidence. The solid carbide 4-cutter head drills cleanly through tough materials and prevents jamming when encountering steel rebar. This ensures you create accurate, round 28 mm holes for solid placement of structural anchors and pipe passthroughs. The high-volume 4-flute spiral geometry extracts drilling dust rapidly, reducing friction, preventing overheating, and lowering vibrations. Featuring a standard SDS-plus shank, a 200 mm working length, and a 250 mm total length, this durable hammer drill bit provides reliable performance and control on every jobsite.

Product information FAQ

€55.20

In stock - tax incl.

Key features according to our expert

Diameter: 28 mm
Drill bit type: Hammer drill bit
Overall length: 250 mm
Shank type: SDS-plus
Material (drill bit): Carbide tip
Number of cutting edges: 4 ea
Cutting length: 200 mm

Product description

The Milwaukee MX4 SDS-Plus drill bit is engineered for the toughest applications, featuring innovative fully welded solid carbide tip technology (up to Ø 20 mm) for maximum durability in rebar and unmatched drilling speed in concrete.
4-Cutter solid carbide tip: Enhanced geometry with a sharp centering tip, rebar guards, and new dust grooves delivers clean starts, precise holes, and maximum life when drilling through rebar - even under extreme jobsite conditions.
Optimised flute design with reinforced core: A thicker core combined with alternating SPEED and HEAVY-DUTY spirals ensures fast debris removal, reduced friction, and superior stability in demanding applications.
Convex shank for maximum energy transfer: The convex shank end optimises energy transfer from tool to tip, boosting impact force, drilling efficiency, and jobsite productivity.
One-Piece slotted carbide tip for Ø >20 mm: For large-diameter concrete drilling, this design offers exceptional strength, extended bit life, and break resistance in heavy-duty use.
PGM certified: Meets industry standards for precision and safety, making it the ideal choice for anchor setting.
Made in Germany: Manufactured to the highest standards for uncompromising quality, reliability, and performance on every jobsite.

All Features

Diameter: 28 mm
Drill bit type: Hammer drill bit
Overall length: 250 mm
Shank type: SDS-plus
Material (drill bit): Carbide tip
Number of cutting edges: 4 ea
Cutting length: 200 mm
Overall length (mm): 250
Pre-drilling: Suitable
Working length (mm): 200

Brand MILWAUKEE
02879814
EAN 4002395359622
Supplier number MILWAUKEE 4932399334

Frequently asked questions about this product

Answered by specialists

Is this rotary hammer drill bit suitable for reinforced concrete?: Yes, the 4-cutter solid carbide head drills smoothly through concrete and resists jamming when hitting rebar.
Which machines are compatible with this drill bit?: It features a standard SDS-plus shank and fits any rotary hammer equipped with an SDS-plus chuck.
What are the dimensions of this drill bit?: This drill bit has a 28 mm diameter, an overall length of 250 mm, and a working length of 200 mm.
What is the advantage of the 4-cutter MX4 head?: The 4-cutter carbide geometry produces accurate round holes, reduces vibration, and delivers a longer service life.
What is the purpose of the 4-flute spiral design?: The 4 flutes extract drilling dust rapidly, reducing friction and minimizing heat build-up during drilling.