Features and Benefits: Material types: high carbon steel for hand tapping applications and high speed steel for machine tapping where critical dimensions are required Etched: tap size and recommended drill bit size are etched on each tool for easy identification Point styles: taper plug and bottoming styles are available Steel Machine Screw Tap Specs: Precision ground straight flutes provide rapid chip removal for efficient threading Designed for hand threading work Taps produce a class 2B thread 1 to 1-1/2 threads chamfered Used when threads must go to bottom of hole Ideal for all general-purpose threading Ideal for tough threading work routine maintenance repair and for re-threading where high accuracy and tolerance thread is not critical