The indexable carbide inserts have four straight cutting edges and four radius corners. The radius corners help to reduce chatter marks and eliminate lines. If one edge is dull or chipped, rotate it 90 degrees to reveal a new edge. No need to sharpen these inexpensive inserts. It greatly reduces downtime and brings huge savings over straight steel blades. Made of Carbide Tungsten Precision ground to +/- 0.01mm or +/-0.0004" in size Standard taper hole. Round corners help reduce chatter marks. Standard 30° cutting angle. 40 to 50 times the life use of HSS blades. Prices are for a box of 10pcs Size: 15x15x2.5mm
