Product Description
Milwaukee 1-1/2 in. x 12 in. Diamond Core Bit Extension
Model Number: 48-17-4015
The Milwaukee 48-17-4015 is a 1-1/2 in. x 12 in. Diamond Core Bit Extension — a barrel extension shaft that adds 12 in. of additional working depth for Milwaukee 1-1/2 in. diamond core bits for through-penetrations in concrete walls where the standard barrel length cannot reach from a single drill position. The 1-1/2 in. diameter specification indicates this extension is matched to the 1-1/2 in. core bit's barrel outer diameter and connection interface — core bit extensions are dimension-specific because the barrel outer diameter and connection thread or slip-on interface must match the specific core bit's barrel geometry for concentric, secure coupling that maintains hole accuracy through the full extension depth. At 12 in. extension length, the system's total working depth increases significantly for through-wall penetrations in thick concrete walls, multi-pour structural sections, and commercial wall assemblies where the standard barrel depth from a single accessible face is insufficient.
Milwaukee precision-machines the extension's connection interface for accurate concentricity between the core bit barrel and the extension — eccentricity at the barrel-to-extension coupling translates directly to hole diameter variation at the cutting face. The extension is used with continuous wet cutting throughout the drilling operation, requiring adequate water delivery through the full extension and barrel system for diamond segment cooling and concrete slurry evacuation. Always verify that the extension's barrel diameter and connection interface match your specific Milwaukee core bit model before ordering, as extension specifications vary by core bit series and barrel diameter.
See Milwaukee's complete core bit extension lineup for all available diameters and lengths for Milwaukee diamond core bit systems.
Features
- 1-1/2 in. extension matched to 1-1/2 in. Milwaukee diamond core bit barrel geometry
- 12 in. additional depth for through-penetrations in thick concrete walls
- Precision-machined coupling for concentric core bit rotation through extension
- Use with continuous wet cutting for segment cooling through full system depth
- Verify core bit model compatibility before ordering
Specifications
- Barrel Diameter: 1-1/2 in.
- Extension Length: 12 in.
- Compatible Bits: Milwaukee 1-1/2 in. Diamond Core Bits (verify model)
Includes
- (1) Milwaukee 48-17-4015 1-1/2 in. x 12 in. Diamond Core Bit Extension
