Accusize - Annular cutter arbor, MT3 to 1-1/4'' Weldon Shank for Drill-use Annular Cutter on Drill Press, MC00-0332 MT3 to 1-1/4'' Weldon Shank With Key For Drill Use Annular Cutter s on Drill Press Fit with Any Size Annular Cutters which Have 1-1/4'' Weldon Shank