C k hole saw arbor with 11mm shaft for 32 152mm hole saws ck tools 424039 quick release hole saw arbour for use with c k holesaws from 32mm 114mm fixing pins are spring loaded for easy withdrawal making holesaw changes fast and efficient 11mm hexagonal drive shaft supplied with replaceable 1 4 hss pilot drill ck tools 424039 hole saw arbor with 11mm shaft for 32 152mm hole saws