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5/16"-24tpi NF UNF 2Flute H-3 Spiral Pointed Plug Tap (12 pack)
5/16"-24 threads per inch NF UNF 2 Flute High Speed Steel
Spiral Pointed Plug Tap.
H-3 Ground Thread Limit. 0.3125" 5/16" Drill Size
Super Fast Free-cutting for use in long through-holes
and in blind holes with chip clearance.
Taps are used for general and machine operations.
(BOX of 12)