Buy direct from THINBIT. GROOVE N TURN LGAT10D2RC, L Series, TiN Coated carbide Acme threading insert for 10 TPI (threads per inch). DURA-MAX 2000 is a versatile and tough sub-micron grain carbide. Because of its high transverse rupture strength and fine grain structure, DURA-MAX 2000 performs well with interrupted cuts. This grade is recommended for cutting steel, cast iron and stainless steel. TiN is an excellent general purpose PVD coating for cutting most materials. TiN provides excellent wear resistance and allows increased cutting rates. TiN increases lubricity at the cutting edge which reduces galling and welding. Kaiser Tool Company, Inc. makes all products in Fort Wayne, Indiana and has over 50 years producing THINBIT products. Our principles are Quality Products, Fast Delivery and Superior Customer Service. Please Note: Final shipping costs will be calculated at checkout based on value of all THINBIT items ordered. THINBIT, GROOVE N TURN and DURA-MAX are registered trademarks exclusively licensed to Kaiser Tool Company, Inc. in the U.S. and/or other countries.