Product Description
Milwaukee 3/16 in. x 12 in. MX4 SDS+ Carbide Drill Bit
Model Number: 48-20-7314
The Milwaukee 48-20-7314 is a 3/16 in. diameter x 10 in. flute length x 12 in. overall length MX4 SDS+ Carbide Drill Bit — the extended-length version of Milwaukee's premium four-cutter 3/16 in. SDS+ bit for applications requiring drilling depth beyond what the standard 6 in. and 8 in. length configurations provide. The MX4 four-cutter tip uses four active carbide cutting edges per revolution to deliver faster penetration rate and distribute cumulative wear across twice the carbide surface area of conventional two-cutter SDS+ bits, providing both higher speed and extended bit life in the hard commercial concrete where small-diameter anchor work is most commonly performed. At 12 in. overall length with 10 in. of flute, this bit serves through-wall CMU penetrations in standard and thick block construction, concrete screw anchor installations specifying longer embedment for higher pull-out ratings, and drilling positions where obstacles between the drill and the wall surface require the additional bit length to reach the drilling location.
The 10 in. flute length is specifically engineered for effective concrete debris evacuation through the full working depth at 3/16 in. diameter — Milwaukee's flute pitch and geometry at this size provide adequate debris transport capacity through the extended working depth, maintaining consistent drilling speed without the hole-packing and bit binding that inadequate flute design at this diameter and length would cause. The MX4 performance advantage at 3/16 in. is most significant in hard commercial concrete where the higher drilling resistance amplifies the speed difference between four-cutter and two-cutter geometries across the full 10 in. working depth. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammers for fast setup on production drilling.
See Milwaukee's complete MX4 SDS+ lineup for all available diameters and lengths in the four-cutter premium specification.
Features
- MX4 four-cutter tip — faster speed and longer life vs. standard 2-cutter SDS+ bits
- 12 in. overall length for CMU through-walls and deep concrete screw embedments
- 10 in. flute engineered for debris evacuation through full working depth at 3/16 in.
- 3/16 in. diameter for concrete screw anchors and light-duty expansion fasteners
- SDS+ shank for tool-free engagement on all SDS+ rotary hammers
Specifications
- Diameter: 3/16 in.
- Flute Length: 10 in.
- Overall Length: 12 in.
- Tip: MX4 4-Cutter Carbide
- Shank: SDS+
Includes
- (1) Milwaukee 48-20-7314 3/16 in. x 12 in. MX4 SDS+ Carbide Drill Bit
