1/2-28 Tap Right Hand Thread Tap 1/2"-28 TPI High Speed Steel Made in USA
1/2-28 NEF (National Extra Fine) Tap is made of premium quality high speed steel in the USA. This is a plug style taps for through holes, tapping through the workpiece or into a hole with clearance behind it. High quality precision ground threads. Manufactured to Table 302/303 standards.