Diamond Dry Core Bit for Brick and Block

MULTIPURPOSE – designed to drill soft brick and building block HEAVY DUTY – embedded diamond concentration guarantees longer core life and efficient drilling PILOT BIT ADAPTER – #30/40 grit size WET OR DRY – recommended to use with handheld core drills or dedicated core drill rigs (rotary mode only) ROTARY MODE ONLY – please only use rotary mode with our core bits Dry diamond core bits with #30/40 diamond grits includes SDS Plus pilot bit adapter and is designed for drilling soft brick or building block. 10mm segment height with 9.5″ drilling depth. 5/8″-11 arbor size, use wet or dry with dedicated core drills or core drill rigs in rotary mode only.