T51 Quick Change Tool Set. Quick change tool post for Boxford lathes, this set also fits Aud. All the parts are hardened and ground. The holders will take up to 16mm Tools but will make you above centre. The set comes with 3 standard holders, 1 parting holder with HSS blade. The main block is 3" square by 2" high with a 5/8 bore. PLEASE NOTE: This set is larger than the M. Please check out my other items! AB, BT, FK, GY, HS, IM, IV, KA, KW, PA, PH, ZE, all Islands excluding IOW. The item "Quick Change Tool Post Set Boxford Lathe Aud Cud Takes Up To 16mm Holders" is in sale since Wednesday, ...