The Husqavarna Dri 8 Vacuum Drill Bit features a large threaded adapter with 1" - 1 1/4" threads per inch for the maximum-size vacuum hole. It has a reduced core travel length (10") for easier start-up and low side run-out.
This bit is suitable for cutting block.
For dry use only.
Dry Core Bits can be used with hammer drills provided you have: 1) the correct adapter and 2) a setting on your drill for spin only (the hammer action will blow the diamonds right off the bit, making it useless).