- Spline DD-BU to 5/8″ M Core Bit to Drill Adapter by BLUEROCK Tools Model #5 fits HILTI
- Spline Style end fits Spline (DD-BU) style drills
- 5/8″ 11unc Male Threaded end fits BLUEROCK Wet type core bits as well as other compatible threaded coring bits
- Solid all metal construction
- The 2.5″ Core Bit is shown for scale and not included with this adapter. Please see our separate listing for core bits and core bit packages