Product Description
Milwaukee 3/8 in. x 12 in. MX4 SDS+ Carbide Drill Bit
Model Number: 48-20-7354
The Milwaukee 48-20-7354 is a 3/8 in. diameter x 10 in. flute length x 12 in. overall length MX4 SDS+ Carbide Drill Bit — the extended deep-reach configuration of the premium four-cutter MX4 bit at the most heavily used commercial anchor diameter. The MX4 four-cutter tip provides four active carbide cutting contacts per revolution versus the standard two-cutter geometry, delivering faster penetration rate and extended bit life from doubled carbide wear distribution — the performance advantages that make MX4 the superior specification for production commercial anchor installation in hard concrete. The 12 in. overall length with 10 in. flute enables through-wall drilling in standard CMU block construction, structural anchor installations where engineering specifications require deeper embedment for higher pull-out load ratings, and drilling positions where the hammer must be positioned away from the wall surface due to structural interference that prevents close placement.
At 3/8 in. diameter and 12 in. overall length, Milwaukee's MX4 flute engineering for this specific configuration optimizes flute pitch and geometry for effective concrete debris evacuation through the full 10 in. working depth — maintaining continuous hole clearing throughout production drilling without the choking that would require frequent drill withdrawal interruptions. The 3/8 in. diameter is the highest-value MX4 specification for commercial concrete anchor installation, and the 12 in. extended length adds the capability for deep-embedment and through-wall applications at the same premium performance level as the standard-length MX4. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammers for fast bit changes during production anchor drilling operations.
See Milwaukee's complete MX4 SDS+ lineup for all available 3/8 in. configurations — individual, 5-pack, 15-pack, and 25-pack quantities available.
Features
- MX4 four-cutter tip — faster speed and longer life vs. standard 2-cutter SDS+ bits
- 3/8 in. — highest-value MX4 diameter for commercial concrete anchor installation
- 12 in. overall length for through-wall CMU and deep embedment anchor drilling
- 10 in. flute optimized for debris evacuation through full working depth
- SDS+ shank for tool-free engagement on all SDS+ rotary hammers
Specifications
- Diameter: 3/8 in.
- Flute Length: 10 in.
- Overall Length: 12 in.
- Tip: MX4 4-Cutter Carbide
- Shank: SDS+
Includes
- (1) Milwaukee 48-20-7354 3/8 in. x 12 in. MX4 SDS+ Carbide Drill Bit
