Draper 6 35mm x 102mm spare hss holesaw pilot drill for hsa hsa2 hsa3 arbors draper 53055 for use with holesaw arbors stock nos 56401 52983 56387 and 56402 size 1 4 6 3mm diameter x 102mm long display packed draper 53055 6 35mm x 102mm spare hss holesaw pilot drill for hsa 2 3 arbors