TMC3040 High-Speed Steel Step Drill 30--40mm
Trepanning action multicut step drill for drilling holes up to 4 mm thick in most materials and incorporating popular diameters for PG, Conduit, BS Pipe and Automotive fittings. Size range. 30 to 40 mm.Max. material tThickness. 4 mm.Shank to fit chuck size : 13 mm. When drilling metals always use a coolant.