Diamond Dry Core Bit for Brick and Block

Masonry Core Drill Bits by EDiamondTools. Details: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. Use on ROTARY MODE ONLY!