Product Description
Milwaukee SDS Max Bit 7/8 in. x 13 in.
Model Number: 48-20-3944
The Milwaukee 48-20-3944 is an SDS Max carbide drill bit in 7/8 in. diameter with a 13 in. overall length — a large-diameter, extended-length heavy-duty concrete bit for the SDS Max platform used in structural anchor drilling, through-wall penetrations, and deep embedment installations requiring the combined high energy of SDS Max and the large 7/8 in. bore diameter. The 7/8 in. diameter accommodates large structural anchors, heavy through-bolt fasteners, and specific large-format anchor systems specified by engineers for the highest load-rated structural connections where the adjacent 3/4 in. and 1 in. sizes are either insufficient for the load requirement or larger than necessary for the connection design. Milwaukee SDS Max bits feature carbide vacuum-brazed to heat-treated steel shanks with the optimized dual cutting edge and flute geometry for sustained drilling performance at this large diameter in the hard commercial concrete where SDS Max hammers are the standard tool choice.
The 13 in. overall length provides the working reach for through-wall penetrations in standard and thick CMU block construction, for structural anchor embedments deeper than standard-length bits achieve, and for drilling positions where structural elements between the hammer and the drilling surface require extra bit length to reach the drilling location from the available clearance position. At 7/8 in. diameter, SDS Max energy delivery is specifically important for maintaining productive drilling speed through hard concrete aggregate — the higher impact energy of SDS Max compared to SDS+ breaks aggregate more efficiently at this large diameter, maintaining penetration rate in the hard commercial concrete where large structural anchors are commonly specified. The SDS Max shank provides positive anti-rotation engagement in the hammer's tool holder for secure retention throughout the drilling operation.
See Milwaukee's complete SDS Max concrete bit lineup for the full range of diameters and lengths available for heavy-duty commercial structural drilling applications.
Features
- SDS Max platform for high-energy large-diameter drilling in hard commercial concrete
- Carbide vacuum-brazed to heat-treated steel shank for sustained 7/8 in. anchor drilling
- 7/8 in. diameter for large structural anchors and heavy through-bolt applications
- 13 in. overall length for through-wall CMU and deep embedment structural drilling
- Optimized fluting for efficient debris evacuation at large diameter and working depth
Specifications
- Diameter: 7/8 in.
- Overall Length: 13 in.
- Shank: SDS Max
- Tip: Carbide, Vacuum-Brazed
Includes
- (1) Milwaukee 48-20-3944 SDS Max Bit 7/8 in. x 13 in.
