Hold Down Clamp Clamping Set Kit Bridgeport Mill (5/8″ Slot 1/2″ Stud) por | jul 29, 2026Fits milling. TN-0212,Step Clamp:25S-12, 40S-12, 60S-12, (2pcs of Each size),Step Block: STB-1, STB-2, STB-3 (2pcs of Each size). TN-0212 Step Clamp 25S-12, 40S-12, 60S-12, (2pcs of Each size) Step Block: STB-1, STB-2, STB-3 (2pcs of Each size).