Product Description
Milwaukee 5-1/2 in. Bit Extension
Model Number: 48-28-4001
The Milwaukee 48-28-4001 is a 5-1/2 in. Bit Extension for use with 1/4 in. hex shank drill bits and driver bits — a compact extension that adds 5-1/2 in. of additional reach beyond the drill chuck for fasteners and drilling locations recessed, countersunk, or otherwise set back from the immediately accessible surface. The 5-1/2 in. length is the shortest standard extension format — providing meaningful reach extension for shallow countersunk fasteners, slightly recessed hardware, and tight clearance situations where even a small amount of additional bit length makes the difference between the drill chuck clearing the surrounding surface and being blocked from driving the fastener. At this compact length, the extension adds minimal weight and only modest flex compared to longer extensions, maintaining driving accuracy and bit stability for the applications this length is designed for.
The 1/4 in. hex quick-change interface accepts all standard 1/4 in. hex shank driver bits and small drill bits with a quick push-in engagement for fast bit changes without removing the extension from the drill chuck. The extension is used with the full range of Milwaukee SHOCKWAVE and standard 1/4 in. hex driver bits, SDS-adapter bits, and 1/4 in. hex drill bits for both driving and drilling applications where the compact reach extension is needed. Milwaukee builds the extension from quality materials for the torsional load and repetitive impact cycles of impact driver and drill use, maintaining its hex interface geometry and bit retention function through sustained production use.
Available in 12 in. and 18 in. lengths for greater reach requirements — see Milwaukee's complete bit extension lineup for all available 1/4 in. hex extension lengths.
Features
- 5-1/2 in. compact extension for shallow recessed fasteners and minor reach needs
- 1/4 in. hex quick-change interface for fast bit changes without chuck removal
- Minimal weight and flex at compact length for accurate driving and drilling
- Compatible with all standard 1/4 in. hex driver bits and small drill bits
- Available in 12 in. and 18 in. for greater reach applications
Specifications
- Length: 5-1/2 in.
- Shank: 1/4 in. Hex
- Bit Interface: 1/4 in. Hex Quick-Change
- Available Lengths: 5-1/2 in., 12 in., 18 in.
Includes
- (1) Milwaukee 48-28-4001 5-1/2 in. Bit Extension