BT21CR MICROBIT® Solid Carbide Boring tool, .125" Minimum bore, .500" Reach, Heavy Duty Elliptical neck with .031" projection and 1/8" 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.

• See Downloads section below item photos for detailed product information, technical information and compatible toolholders.
• .125" Minimum bore with .500" tool reach. Heavy Duty Elliptical neck.
• .031" Projection, 6° Cutting angle, Sharp Corner
• Uncoated DURA-MAX® 2000 solid carbide boring tool for steel, cast iron and stainless steel with interrupted cuts
• 1/8" Diameter shank, 1.5" Overall length

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