10 Pcs Tap Extractor Set Broken Head Screw Remover Steel Screw Remover Tool 3 Types. 10-piece set includes: No. 1-10 (boxed). 3/4 blade specifications ---1#: 3 blades, M4, 6#; 2#: 3 blades, M5, 8-10#; 3#: 3 blades, M6, 12#-1/4; 4#: 3 blades, M7-8, 5/16"; 5#: 3 blades, M9-10, 3/8"; 6#: 4 blades, M11-12, 7/16-1/2"; 7 #: 4 blades, M14, 9/16"; 8#: 4 blades, M16, 5/8"; 9#: 4 blades, -20, 3/4"; 10#: 4 blades, M22- 24,7/8"-1.
