Starrett A5 Hole Saw Drive Arbor Extension
This Starrett 300mm (12") hole saw arbor extension bar is suitable for use with any arbor with an 11mm (7/16") shank size.
Craigmore UK
GBP 11.10
Starrett A5 Extension for A2 & A2E Arbors STRA5
The Starrett A5 extension will accomodate A2, A17-12 and XA2 arbors. A15 fits A1, A10 and A17-38 arbors.
Zoro UK Limited
GBP 16.99