4-1/4" Diamond Dry Core Bit for Brick and Block with SDS Plus Pilot Bit Adapter, 9.5" Drilling Depth

4-1/4" Diamond Dry Core Bit for Brick and Block with SDS Plus Pilot Bit Adapter, 9.5" Drilling Depth

MULTIPURPOSE - designed to drill soft brick and building block HEAVY DUTY - embedded diamond concentration guarantees longer core life and efficient drilling PILOT BIT ADAPTER - includes SDS Plus pilot bit adapter DRILLING DEPTH - 9.5" drilling depth GRIT SIZE - #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.