Product Description
Milwaukee 1/4 in. x 6 in. MX4 SDS+ Carbide Drill Bits — 15 Pack
Model Number: 48-20-7931
The Milwaukee 48-20-7931 is a 15-pack of 1/4 in. diameter x 4 in. flute length x 6 in. overall length MX4 SDS+ Carbide Drill Bits — a value-pack quantity of Milwaukee's premium four-cutter SDS+ bits for the 1/4 in. anchor drilling diameter used in commercial construction for small concrete fastener installations. The MX4 four-cutter tip delivers four active carbide cutting contacts per revolution versus the standard two of conventional SDS+ bits, providing faster penetration rate and distributing wear across more carbide surface area for extended bit life in hard commercial concrete where the four-cutter advantage is most pronounced. The 15-pack provides the production bit supply for commercial anchor installation crews at the MX4 premium performance level — the four-cutter speed and life advantages translate directly to faster installation pace and longer per-bit service across the pack compared to standard two-cutter bits at the same diameter.
The 6 in. overall length with 4 in. flute length is the standard compact configuration for typical 1/4 in. anchor embedment depths and ceiling penetrations where the compact length provides easy positioning in overhead and horizontal drilling without unnecessary bit length that would complicate drill handling in tight spaces. Milwaukee's optimized flute geometry maintains efficient concrete debris evacuation through the full 4 in. flute length for consistent drilling speed without hole-clearing interruptions during production anchor installation runs. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammers for the fast bit changes that production anchor installation pace requires.
See Milwaukee's complete MX4 SDS+ lineup and bulk pack options for all available sizes and quantities where the four-cutter premium performance is available.
Features
- 15-pack MX4 for economical premium four-cutter performance on commercial anchor work
- MX4 four-cutter tip — faster speed and longer life vs. standard 2-cutter SDS+ bits
- 1/4 in. diameter for small concrete screw anchors and light-duty expansion fasteners
- 6 in. overall length for standard anchor embedment and ceiling penetrations
- SDS+ shank for tool-free engagement on all SDS+ rotary hammers
Specifications
- Diameter: 1/4 in.
- Flute Length: 4 in.
- Overall Length: 6 in.
- Tip: MX4 4-Cutter Carbide
- Shank: SDS+
- Quantity: 15 Pack
Includes
- (15) Milwaukee 48-20-7931 1/4 in. x 6 in. MX4 SDS+ Carbide Drill Bits
