ROUGH TCT HOLE SAW This hole is for cutting various wood, chip board,plasterboard, brick, normal hardness ... ,83mm with hex screwAl Alloy Base to fit hole saw 33,43,53,63,67,73,83mm with ... hex screwAl Alloy Base to fit hole saw 73,83,93,103,113mm with hex screwAl ... Alloy Base to fit hole saw 33,43,53,63,67,73,83,93, ... length 145mm with SDS-plus shank ROUGH TCT HOLE SAW