Regal Left Hand 1/4-20 Size 4 Flute H.S.S. H3, Bottoming Tap
Regal Left Hand 1/4"-20 Size 4 Flute H.S.S. H3, Bottoming Tap H.S.S. - High Speed Steel Ground Thread Use in wide variety of materials to create left hand threaded holes. Used to support counterclockwise turning direction of spindle. Hardness: 58 to 60 RC
$20.76
$25.95
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