Product Description
Milwaukee SDS+ Bit 7/8 in. x 8 in.
Model Number: 48-20-7071
The Milwaukee 48-20-7071 is an SDS+ rotary hammer drill bit in 7/8 in. diameter with an 8 in. overall length — a large-diameter concrete bit for anchor installations, sleeve penetrations, and through-wall drilling at the 7/8 in. diameter specification where the 8 in. length provides working reach beyond what the standard compact configuration delivers. The 7/8 in. diameter covers specific structural anchor systems, large-diameter concrete screw fasteners, and specialty through-bolt applications where this precise bore diameter is required rather than the more common adjacent 3/4 in. or 1 in. sizes. Milwaukee SDS+ bits incorporate carbide vacuum-brazed to heat-treated steel shanks using the manufacturing process that creates the metallurgical bond between the carbide insert and the steel shank needed for positive tip retention under the sustained rotary hammer impact loads of large-diameter concrete drilling across the bit's full service life.
The 8 in. overall length provides working depth beyond the standard compact length for applications where anchor embedment depth specifications, through-wall dimensions, or drilling position constraints require more bit length than the standard 6 in. configuration provides. At 7/8 in. diameter, the combination of larger bit cross-section, higher concrete contact area, and extended working depth places significant demands on the flute engineering to maintain continuous debris evacuation throughout the hole depth — Milwaukee's helical flute geometry handles this efficiently, keeping the hole clear and drilling speed consistent from start to full depth. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammers for fast bit changes during drilling operations.
For even higher energy delivery in hard commercial concrete at this diameter, Milwaukee's SDS Max lineup provides larger shank format bits that transmit more impact energy per hammer stroke for more productive drilling in demanding concrete conditions.
Features
- Carbide vacuum-brazed to heat-treated steel shank for large-diameter concrete drilling
- 7/8 in. diameter for specific anchor systems and large-diameter concrete fasteners
- 8 in. overall length for deeper embedment and extended through-wall reach
- Optimized fluting for continuous debris evacuation at this diameter and depth
- SDS+ shank for tool-free engagement on all SDS+ rotary hammers
Specifications
- Diameter: 7/8 in.
- Overall Length: 8 in.
- Shank: SDS+
- Tip: Carbide, Vacuum-Brazed
Includes
- (1) Milwaukee 48-20-7071 SDS+ Bit 7/8 in. x 8 in.
