Product Description
Milwaukee 5 in. x 12 in. Diamond Core Bit Extension
Model Number: 48-17-4050
The Milwaukee 48-17-4050 is a 5 in. x 12 in. Diamond Core Bit Extension — a large-diameter barrel extension shaft that adds 12 in. of additional working depth for Milwaukee 5 in. diamond core bits for through-penetrations in thick concrete walls where the standard barrel length cannot reach from a single drill position. The 5 in. diameter specification matches the 5 in. core bit's barrel outer diameter and connection interface — core bit extensions are dimension-specific because the barrel outer diameter and connection interface must match the specific core bit's barrel geometry for the concentric, secure coupling that maintains hole accuracy through the full extension depth. At the 5 in. large diameter, the extension must transmit the substantial rotational force and manage the large-volume concrete slurry generated by the 5 in. core drilling process through the full 12 in. extension length without the torque-induced connection movement that would change the hole's position during the penetration.
Milwaukee precision-machines the extension's coupling interface for accurate concentricity between the core bit barrel and the extension — eccentricity at the coupling translates directly to hole diameter variation at the cutting face, particularly significant at the 5 in. large diameter where small eccentricity errors are amplified by the large cutting radius. The extension is used with continuous, abundant wet cutting throughout the drilling operation for segment cooling and slurry evacuation through the full extended system. Verify that the extension's barrel diameter and connection interface match your specific Milwaukee 5 in. core bit model before ordering.
See Milwaukee's complete core bit extension lineup for all available diameters and lengths for Milwaukee diamond core bit systems.
Features
- 5 in. extension matched to 5 in. Milwaukee diamond core bit barrel geometry
- 12 in. additional depth for through-penetrations in thick structural concrete
- Precision-machined coupling for concentric rotation through large-diameter extension
- Abundant continuous wet cutting essential for 5 in. cooling through full depth
- Verify 5 in. core bit model compatibility before ordering
Specifications
- Barrel Diameter: 5 in.
- Extension Length: 12 in.
- Compatible Bits: Milwaukee 5 in. Diamond Core Bits (verify model)
Includes
- (1) Milwaukee 48-17-4050 5 in. x 12 in. Diamond Core Bit Extension
