CT Plug Making Drilling machines only. DESCRIPTION Drilling machines only. Can be used with the CSD range of Countersink Drills and CBD range of Counterbore Drills. Maximum Plug Depth=16mm for all cutters. TTPMC8 Plug Diameter=9.5mm, No. 8 Wood Screw TTPMC9 Plug Diameter=10mm TTPMC10 Plug Diameter=12mm, No. 10 Wood Screw TTPMC127 Plug Diameter=12.7mm TTPMC12 Plug Diameter=16mm, No. 12 Wood Screw