BT50 Shank Tools BT50 Shank Tools Tunable Shell Mill Adapters with Through Coolant (SMC BT Form B/AD continued) SMC TD Lock IN-BT Form A lock drive wrench size order number catalog number D1 D2 D21 L1 L2 L20 L21 screw key lock screw lbs 4135494 BT50BTDSMC0751050 3/4 1.75 2.56 10.5 .53 8.6 9 KLS07 KDK05 1/4 16.73 4135495 BT50BTDSMC1001250 1 2.75 — 12.5 11.00 — — KLS10 KDK06 5/16 25.46 4135496 BT50BTDSMC1251300 1 1/4 2.88 — 13.0 11.50 — — KLS12 KDK08 5/16 32.71 NOTE: Do not overtighten lock screw. Supplied with lock screw and drive keys. Interchangeable coolant-style lock screws are available and must be ordered separately; see page J26. Lock screw wrench not included. For retention knobs, see page J33. WWW.WIDIA.COM D81