Luctool 9/16-18 UNF Spiral Flute Tap Bottom GH3 Limit 3 Flute HSS Uncoated Bright Finished Ground Thread. Luctool Provides Premium Quality Hand Tools for Metal Threading.

9/16-18 UNF Spiral Flute Tap Bottom GH3 Limit 3 Flute HSS Uncoated Bright Finished Ground Thread · Thread Size: 9/16"-18 · Thread Limit: GH3 · Number of Flutes:3 · Overall Length: 3-19/32 · Thread Length: 1-21/32 · Finish/Coating: Bright · Material: High Speed Steel (HSS)