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UNS (Unified National Special) HSS Taps

Sizes from 9/32" up to 9/16"

Also including UNEF Extra-Fine Thread Taps

These standard style taps have straight flutes of a number specified as either standard or optional. Hand taps are for general purpose applications such as production tapping or hand tapping operations. Taper, plug and bottoming styles provide versatility in tough materials, blind and through holes. Don't forget to check your correct drill size and use a good cutting lubricant, such as our trefolex paste

For appropriate tap drill sizes please view our drill size calculator