5/16" x 3-1/8" HSS Ground Lathe Form Tools 11x Set Unimat Emco Myford Boxford
HSS Lathe Form Tools Set 11 Pieces Set. Size: 5/16" Shank. SHANK LENGTH - 3-1/8". Made of high quality H.S.S material. Right hand turning tool. Internal threading (60/ 55 Deg). Left hand turning tool.