Halls TMC3040 High-Speed Steel Step Drill 30--40mm Office > Industrial & Industrial Tools & Measuring Tools & Other Measuring Tools Complete rail support base with

Complete rail support base with two premium rails

Integral metal striking head ensure both precise work & long tool life

10 mm x 10 mm

Bi-Hex socket (12pt)

Halls TMC3040 High-Speed Steel Step Drill 30--40mm Office > Industrial & Industrial Tools & Measuring Tools & Other Measuring Tools Complete rail support base withTrepanning 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.