Dry Core Bit for Brick and Block with Pilot Bit - 4" Diameter - 1/2" Shank Arbor - #30/40 Diamond
Brand: EDiamondTools
Color: Blue

Designed for drilling masonry, block and brick - Pilot Bit Included - Multiple sizes available - 4" Diameter - Thread: 1/2" Shank - Drilling depth: 9.5" - High diamond concentration and quality guarantee longer coring life

#30/40 diamond grit for drilling soft brick, soft masonry and block
Diameter: 4 inch - Pilot Bit Included
Thread: 1/2" Shank
Drilling depth: 9.5"
High diamond concentration and quality guarantee longer coring life, solid poured concrete not recommended