Product Description
Milwaukee 1/4 in. x 8 in. MX4 SDS+ Carbide Drill Bit
Model Number: 48-20-7332
The Milwaukee 48-20-7332 is a 1/4 in. diameter x 6 in. flute length x 8 in. overall length MX4 SDS+ Carbide Drill Bit — the premium four-cutter configuration at 1/4 in. diameter with extended length for faster drilling and longer bit life than standard two-cutter designs in this size's concrete anchor drilling applications. Milwaukee's MX4 four-cutter tip uses four active carbide cutting edges simultaneously engaging the concrete surface per revolution, doubling the cutting contacts of conventional two-cutter SDS+ bits to deliver faster penetration rate and distribute cumulative wear across twice the carbide surface area for proportionally extended bit life. The 8 in. overall length with 6 in. flute length extends the working reach beyond the standard 4 in. compact configuration, serving through-wall CMU penetrations, longer concrete screw pilot holes, and drilling positions that the standard bit cannot reach.
The MX4 performance advantage at 1/4 in. diameter is most significant in hard commercial concrete where the higher drilling resistance amplifies the speed difference between two-cutter and four-cutter geometries — the four cutting contacts maintain momentum through hard aggregate encounters that would slow two-cutter bits more significantly, resulting in both faster average penetration rate and longer bit life per unit of concrete drilled. At 8 in. overall length, Milwaukee's optimized flute pitch and geometry maintain effective concrete debris evacuation through the 6 in. working depth for uninterrupted production drilling at this diameter and length combination. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammers for fast setup on production anchor installation work.
See Milwaukee's complete MX4 SDS+ lineup for all available diameters and lengths where the four-cutter performance advantage is engineered into the bit specification.
Features
- MX4 four-cutter tip — faster speed and longer life vs. standard 2-cutter SDS+ bits
- Four cutting edges double contacts per revolution for faster concrete penetration
- 8 in. overall length for CMU through-walls and longer concrete screw embedments
- 6 in. flute for efficient debris evacuation through full working depth
- SDS+ shank for tool-free engagement on all SDS+ rotary hammers
Specifications
- Diameter: 1/4 in.
- Flute Length: 6 in.
- Overall Length: 8 in.
- Tip: MX4 4-Cutter Carbide
- Shank: SDS+
Includes
- (1) Milwaukee 48-20-7332 1/4 in. x 8 in. MX4 SDS+ Carbide Drill Bit
