C k hole saw arbor with 8mm shaft for 32 152mm hole saws ck tools 424040 heavy duty hole saw arbour for use with c k holesaws from 32mm 114mm fixing pins are locked in place with a screw down collar securing the holesaw for heavy duty use 11mm hexagonal drive shaft supplied with replaceable 1 4 hss pilot drill ck tools 424040 hole saw arbor with 8mm shaft for 32 152mm hole saws