#4 40-64 TPI SINGLE PITCH THREAD MILL - TiALN COATED 2pcs

#4 40-64 TPI SINGLE PITCH THREAD MILL - TiALN COATED 4-40 UNC USA. TiALN COATED. USE TO CUT A #4 OR LARGER THREAD: 40-64 TPI. POLISHED SHANK.

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