Product Description
Milwaukee SDS+ Bit 1/4 in. x 10 in. x 12 in.
Model Number: 48-20-7434
The Milwaukee 48-20-7434 is an SDS+ rotary hammer drill bit in 1/4 in. diameter with a 10 in. working length and 12 in. overall length — the deep-reach extended-length configuration of the 1/4 in. SDS+ bit for applications where through-wall CMU penetrations, longer concrete screw embedment specifications, or drilling position constraints require more working depth than the standard 6 in. and 8 in. configurations provide at this small diameter. The 1/4 in. diameter is used for small concrete screw anchors and light-duty expansion fasteners throughout commercial and residential construction, and the 12 in. overall length extends the application range to include through-wall drilling in standard CMU block construction where the wall thickness plus any finish system depth exceeds what shorter bits can penetrate from a single side, and to anchor installations where the concrete screw length specification requires greater pilot hole depth than the standard configurations achieve.
Milwaukee 44 Magnum SDS+ bits feature carbide vacuum-brazed to heat-treated steel shanks engineered for the specific demands of extended-length small-diameter drilling — at 1/4 in. diameter and 12 in. overall length, the relationship between bit body cross-section, flute volume, and working depth creates engineering challenges for maintaining adequate concrete debris evacuation that Milwaukee's optimized helical flute geometry specifically addresses, maintaining continuous debris transport from the base of the hole through the full 10 in. working depth without the hole choking that would require frequent drill withdrawal to clear the hole during production drilling operations. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammers for fast bit changes.
Individual unit format for specific-application purchasing — 25-pack bulk formats available for high-volume installations. See Milwaukee's complete 44 Magnum SDS+ catalog for all pack quantities at this diameter and length.
Features
- Carbide tip vacuum-brazed to heat-treated steel shank for deep small-diameter drilling
- 1/4 in. diameter for concrete screw anchors and light-duty expansion fasteners
- 12 in. overall length for through-wall CMU and long concrete screw embedments
- Optimized fluting maintains debris evacuation through full 10 in. working depth
- SDS+ shank for tool-free engagement on all SDS+ rotary hammers
Specifications
- Diameter: 1/4 in.
- Working Length: 10 in.
- Overall Length: 12 in.
- Shank: SDS+
- Tip: Carbide, Vacuum-Brazed
Includes
- (1) Milwaukee 48-20-7434 SDS+ Bit 1/4 in. x 10 in. x 12 in.
