ZFE 1Pc 1/8"-27 HSS NPS Straight Pipe Tap Machine Thread Tap ZFE 1/8"-27 HSS NPS Straight Pipe Tap Machine Thread Tap 1/8" - 27 NPS High-speed steel for compatibility with a variety of materials Hand threading tap with straight flutes cuts threads in through holes and blind holes Round shank with square end allows tap to be used in hand or power-driven applications