... concrete, bricks, stone blocks HOLE SAWDiamond core drills are on silver brazing type and laser welded type for choice both professional ... cutting depth: 38mm, diameter from 14mm to 152mmTungsten grit tipped hole saw is to cut holes in concrete, bricks, cements, plaster, ... -durty work. Max cutting depth: 70mm, max diameter: 152mmTCT hole saw is to cut holes in concrete, bricks, cements, plaster, ...