When holesaw grip in your drill's chuck is important, get the Kango Diamond Pro Holesaw Arbor with a hex shank. These holesaw arbors are designed for use with Diamond Pro Holesaws 19mm-30mm and are compatible with Diamond Pro Retractable Starter Bits. Get yours from Bunnings.
19‐30mm Diamond Hole Saw Arborexpand_more
- Size Range 19-30mm
- Shank 11/32"