9/16-18NF Bottom Tap Irwin 1549

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