MBGIW15D4C boring inserts are designed to use with MINI-BORE® MBG series boring bars and any boring bar that accepts ANSI WCGT 21.5 style inserts. The insert is TiN Coated and has a Molded Chipbreaker. The insert is a .250" I.C. Trigon with 3 cutting edges and .015" corner radii. DURA-MAX® 4000 is a tough, general purpose sub-micron grain carbide. DURA-MAX® 4000 is designed for roughing. This grade is recommended for cutting steels, stainless steel, nickel based alloys and applications where there are interrupted cuts. 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.

• See Downloads section below product photos for detailed product information, technical information and compatible boring bars.
• Use MBG series or ANSI WCGT 21.5 style boring bars
• TiN Coated DURA-MAX® 4000 carbide boring insert for steel, cast iron, and stainless steel with interrupted cuts
• .015" Radius, 3 Cutting edges , Molded Chipbreaker, .250" I.C. Trigon insert.
• Includes F26 Screw

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