No arbor required. The continuous, brazed edge lasts longer in tile and stone. Over sized slot in hole saw for easy plug removal with low torque, little pressure required for fast, easy cutting. Includes: 3/16", 1/4", 5/16", and 3/8".
Tungsten carbide grit set includes: 1-1/4", 1-3/4", 2-1/8", 2-1/2", arbor and pilot bit. Cuts ceramic tile, concrete block, cement board, brick, fiberglass, plexiglass, PVC, wood with nails, cultured marble and drywall.