Irwin 10504536 9.5mm MandrelThis Irwin mandrel is designed for use with hole saws. It features a 9.5 mm (3/8 in) hex shank for secure fitting. Compatible with hole saw sizes ranging from 14-30 mm (9/16 - 1 3/16 in).Features 9.5 mm (3/8 in) Hex shank Suitable for 14-30 mm hole sawsSpecifications Brand: Irwin MPN: 10504536 EAN: 5706915945362 Hole Saw Sizes: 14-30 mm (9/16 - 1 3/16 in)