Product Description
Milwaukee SDS Max Bit 1/2 in. x 13 in.
Model Number: 48-20-3902
The Milwaukee 48-20-3902 is an SDS Max carbide drill bit in 1/2 in. diameter with a 13 in. overall length — a medium-diameter, extended-length concrete drilling bit for the SDS Max rotary hammer platform used in heavy-duty anchor installations, through-wall penetrations, and structural drilling applications requiring the higher energy output of the SDS Max system beyond what SDS+ rotary hammers can deliver at this diameter. The SDS Max shank is the highest-energy standard in the rotary hammer market, transmitting more impact energy per stroke than SDS+ — at 1/2 in. diameter and 13 in. length, the SDS Max energy level maintains productive drilling speed through hard commercial concrete, high-strength concrete, and heavily aggregate-laden concrete conditions where SDS+ hammers at the same diameter work harder and drill slower. This makes the SDS Max bit the correct choice for high-production commercial anchor installation in demanding concrete where SDS+ performance is inadequate for the required drilling pace.
Milwaukee SDS Max concrete bits feature carbide vacuum-brazed to heat-treated steel shanks specifically engineered for the higher energy loads of the SDS Max system — the carbide tip geometry, bond specification, and shank heat treatment are calibrated for SDS Max impact energy levels rather than the lower-energy SDS+ system. Dual cutting edges and the optimized helical flute geometry maintain continuous concrete debris evacuation through the full working depth for consistent drilling speed throughout the hole. The 13 in. length provides the reach for through-wall penetrations in standard CMU construction, deep embedment structural anchor installations, and through-slab conduit penetrations where the combined diameter and depth requirements exceed what standard-length bits achieve.
Milwaukee's SDS Max concrete bit lineup covers 3/8 in. through 1-1/2 in. in multiple lengths for the full range of heavy-duty commercial concrete drilling requirements — see the complete SDS Max bit catalog for all available sizes.
Features
- SDS Max shank for maximum impact energy delivery in hard commercial concrete
- Carbide vacuum-brazed to heat-treated shank — calibrated for SDS Max energy levels
- 1/2 in. diameter for 3/8 in. anchors and medium-duty structural fastener installations
- 13 in. length for through-wall CMU and deep embedment anchor drilling
- Optimized fluting for continuous debris ejection through full working depth
Specifications
- Diameter: 1/2 in.
- Overall Length: 13 in.
- Shank: SDS Max
- Tip: Carbide, Vacuum-Brazed
Includes
- (1) Milwaukee 48-20-3902 SDS Max Bit 1/2 in. x 13 in.
