Product Description
Milwaukee SDS+ Bit 1/4 in. x 2 in. x 4 in.
Model Number: 48-20-7430
The Milwaukee 48-20-7430 is an SDS+ rotary hammer drill bit in 1/4 in. diameter with a 2 in. working length and 4 in. overall length — the individual unit format for the compact small-diameter 1/4 in. SDS+ bit for anchor pilot holes, concrete screw fasteners, and light-duty concrete and masonry drilling in confined spaces and applications requiring minimal hole diameter. The 1/4 in. diameter is used for small concrete screw anchors, light-duty expansion fasteners, and specialty concrete drilling applications where the hole diameter must be minimized — it is also the correct specification for certain specialty anchors that require exactly 1/4 in. pilot holes rather than the more common 3/16 in. or 5/16 in. adjacent sizes. Milwaukee SDS+ bits feature carbide vacuum-brazed to heat-treated steel shanks with dual cutting edges and optimized helical flutes that maintain efficient concrete drilling from first use through the end of the bit's service life.
The compact 4 in. overall length is specifically advantageous for the tight-clearance drilling applications where small-diameter anchor work is most often needed — overhead anchor installations in concrete ceilings where the shortest possible bit keeps the drill control point as close to the work as the chuck allows, horizontal drilling near corners, walls, and structural elements that limit the available clearance for bit length, and any confined-space application where the combination of small diameter and short bit length enables drilling in locations inaccessible to standard-length bits. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammer chuck systems for fast bit changes during production drilling operations. For high-volume installations, Milwaukee offers this size in 25-pack bulk packaging at reduced per-bit cost compared to the individual unit here.
Individual packaging is the right choice for contractors who need a specific replacement bit or who use this size occasionally rather than in production quantities — see Milwaukee's SDS+ bit catalog for bulk pack options.
Features
- Carbide tip vacuum-brazed to heat-treated steel shank for small-diameter concrete drilling
- 1/4 in. diameter for small concrete screw anchors and light-duty expansion fasteners
- Compact 4 in. overall length for tight-clearance overhead and confined-space drilling
- SDS+ shank for tool-free engagement — 25-pack (48-20-7530) available for bulk use
Specifications
- Diameter: 1/4 in.
- Working Length: 2 in.
- Overall Length: 4 in.
- Shank: SDS+
- Tip: Carbide, Vacuum-Brazed
Includes
- (1) Milwaukee 48-20-7430 SDS+ Bit 1/4 in. x 2 in. x 4 in.
