TT31BR MICROBIT® Uncoated Solid Carbide Threading tool. 7 to 56 threads per inch, single lead, 60° Right Hand internal threads. .187" Minimum bore, .704" Reach, Standard Elliptical neck and 3/16" Shank. 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. 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. THINBIT, MICROBIT and DURA-MAX are registered in U.S. Patent and Trademark Office.

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• .187" Minimum bore with .704" tool reach. Standard Elliptical neck. .080" projection.
• 7 to 56 threads per inch, single lead, 60° Right Hand internal threads.
• Uncoated DURA-MAX® 2000 Threading insert for steel, cast iron and stainless steel with interrupted cuts
• 3/16" Diameter shank, 1.974" Overall length

See Downloads section below item photos for detailed product information, technical information and compatible toolholders.Kaiser Tool Company, Inc.