Pair the DMI core bit diameter you need with one DMI Breakaway Washer (SKU DMI-WA-2). The washer installs between the drill shaft stop and the core bit; loosening its two Allen screws releases the clamp to help remove a jammed bit without damaging the threads.
Pro Direct pricing: save approximately 5% on the core bit plus approximately 50% on the DMI-WA-2 Breakaway Washer.
UPS Shipping: 1-4 Days
*excludes all equipment