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Metric thread: M3 - M6. M6 - M8. M8 - M11. M11 - M14. M14 - M18. M18 - M24. For 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". Drill Ø (mm): 2,5 3 4,5 6 8 11. Left-hand drill bits. For extracting broken Read more.
• Left-hand drill bits • For extracting broken screws and threaded bolts • No thread damage • Hardened chrome vanadium steel, burnished surface
