A10 Arbor to suit 32-210mm Holesaws. Fitted with a 6.5mm/1/4 in pilot drill, with a quick hitch mechanism that enables the user to instantly change holesaws without the use of tools and without removing the arbor from the chuck. Suffix E denotes extra-long pilot drill. Shank Size: 8.75mm hex suitable to fit a 9.5mm capacity chuck.