... ,plasterboard, brick, normal hardness ceramic,tiles, concrete wall with alloy base and carbide tipped pilot drill in kits.Max cutting depth ... hole saw33,43,53,63,67,73,83mm 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 ...