Jet Tools - CK-38, 52-Piece Clamping Kit with Tray for 3/8" T-SlotDetails JET has the tool kits and accessories you need to ensure superior performance of your Milling Machine. FEATURES: Storage tray can be mounted on machine or wall Three complete sets to choose from 52 piece kit includes: Six T slot nuts Six Flange nuts Four Coupling nuts Six Step blocks Six Step clamps Twenty four Studs, four each (3", 4", 5", 6", 7" & 8" lengths)