Set of 4
High speed steel
Oster Style - Symbol X-1 Pipe Chasers HSS
Oster Style - Symbol 300 Chasers HSS
Oster Style - Quad Pipe Chasers HSS
Oster Style - Quad Bolt Chasers HSS
LSI Chasers, Chaso-Royco Div. Geometric-style Chasers