A5 holesaw extension for A2, A17-12 and XA2 arbors

300mm (12"") hole saw arbor extension bar. Suitable for use with any arbor with an 11mm (7/16"") shank. Specifications • Length (mm): 300mm • Length (in): 12"" • Fits Chuck Size (mm): 13mm • Fits Chuck Size (in): 1/2""