Size: 1/2-14 NPT 4 Flute High Speed Steel Standard Flute Tap 3-1/8" OAL, 1-3/8" Thread Length, 11/16" Shank Diam, 0.515" Square, 1 to 3-1/2 Chamfer TIN COATING: Made for machining ferrous material. Titanium Nitride is a general purpose coating that has a medium heat resistance threshold and satisfactory lubricity. MAX WORKING TEMP: 650C/1200F.Projection 0.579" Jarvis taps cut superior internal threads to make pressure tight joints. Our pipe taps are made to withstand the higher cutting forces at required for 100% thread depth. Your Guarantee: At Jarvis Cutting Tools we are committed to you, to quality and to consistency, providing application-specific standards and made to order specials produced using innovating manufacturing process on modern equipment. PROUDLY MADE IN THE USA. 119 Years of experience in every tool. Since 1901, Jarvis Cutting Tools has been a catalyst for quality and inspired innovation in the cutting tool industry while remaining a family owned company. Throughout the generations our mission has always been to deliver the best possible tool for the application with the best possible customer service and support. Customers choose Jarvis for our superior tool performance and for the true partnership we are able to provide as a domestic tool source. Our accessibility, engineering expertise and on-site support is unmatched.