Burkit 1/4"-40 Uns Tap And Die Set, 1/4 X 40 Uns Machine Thread Tap And Round

• Tap Length: 2.68"/68mm, Thread Head: 1.14"/29mm, Shank Diameter: 6.3mm, Square Head: 5mm x 5mm (L*W), TPI: 40, Accuracy Class: 2B.
• Die OD: 0.79"/20mm, Die Thickness: 0.27"/6.9mm, TPI: 40, Accuracy Class: 2A.
• Technology: Straight fluted design, fast chip removal, and no blocking make your threads machining faster and easier.
• Applications: Widely used in cast iron, copper, brass, abrasive steel, A3 steel, and other metal materials to process threads.
• Package Include: 1 set 1/4"-40 UNS Tap&Die.