Metric thread: M3 - M6, M6 - M8, M8 - M11, M11 - M14, M14 - M18, M18 - M24, M24 - M33, M33 - M45For imperial thread: 1/8" - 1/4", 1/4" - 5/16", 5/16" - 7/16", 7/16" - 9/16", 9/16" - 3/4", 3/4" - 1", 1" - 1 1/4", 1 1/4" - 1 3/4"Drill Ø (mm): 2,5 3 4,5 6 8 11 13,5 18,5• Left-hand drill bits
• For extracting broken screws and threaded bolts
• No thread damage
• Hardened chrome vanadium steel, burnished surface
