Machinists, this HHIP indexable boring bar is a solid tool for precision boring work. It has a 3/8-inch shank diameter and is 6 inches long overall, with a minimum bore capacity of 0.500 inches. The bar uses CCMT-21.51 inserts (an 80-degree diamond shape), and one insert is even included—nice! The geometry is set up for semi-finishing and finishing operations: it has a 7-degree relief angle, a negative 5-degree lead angle for boring, and 3-degree side and end cutting edge angles. That means it's designed to give you a clean, accurate finish on your bores. A Torx T-8 wrench is included for changing inserts. Whether you're working on a lathe or mill, this bar is a reliable choice for getting those smooth, precise internal diameters. Keep a few inserts on hand, and you're set for a lot of precise work. If you need a profiling bar that delivers quality finishes, this one's worth a look.
