Product Description
Milwaukee 1/4 in. x 4 in. MX4 SDS+ Carbide Drill Bit
Model Number: 48-20-7330
The Milwaukee 48-20-7330 is a 1/4 in. diameter x 2 in. flute length x 4 in. overall length MX4 SDS+ Carbide Drill Bit — the compact standard configuration of Milwaukee's premium four-cutter MX4 bit at the 1/4 in. anchor diameter. The MX4 four-cutter tip provides four active carbide cutting contacts per revolution versus the two-cutter standard of conventional SDS+ bits, delivering faster penetration rate and extended bit life by distributing cumulative carbide wear across twice the surface area. The 4 in. overall length with 2 in. flute is the shortest standard MX4 configuration for this diameter — providing the access advantages of a compact bit for overhead ceiling anchor installations and tight-clearance confined-space drilling where keeping the drill as close to the work surface as possible is important for arm extension comfort and drilling accuracy.
The 1/4 in. diameter is the standard pilot hole for light-duty concrete screw anchors and small expansion fasteners throughout commercial construction — the MX4's four-cutter advantage at this small bore is most pronounced in hard commercial concrete where four cutting contacts maintain drilling momentum through hard aggregate that would stall a two-cutter bit's progress more noticeably at this small diameter. The compact 4 in. overall length with 2 in. working depth covers the typical light-duty anchor embedment depths for concrete screw and small expansion anchor installations at ceiling height and wall positions. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammers.
See Milwaukee's complete MX4 SDS+ lineup for all available 1/4 in. configurations and for all diameters in the four-cutter premium specification.
Features
- MX4 four-cutter tip — faster speed and longer life vs. standard 2-cutter SDS+ bits
- 1/4 in. for light-duty concrete screw anchors and small expansion fasteners
- Compact 4 in. overall length for overhead and confined-space drilling positions
- Four cutting contacts maintain momentum in hard concrete at small 1/4 in. bore
- SDS+ shank for tool-free engagement on all SDS+ rotary hammers
Specifications
- Diameter: 1/4 in.
- Flute Length: 2 in.
- Overall Length: 4 in.
- Tip: MX4 4-Cutter Carbide
- Shank: SDS+
Includes
- (1) Milwaukee 48-20-7330 1/4 in. x 4 in. MX4 SDS+ Carbide Drill Bit
