This S08M-SCLCR-3 Boring Bar includes Carbide Inserts on a Steel Holder. It is a single unit designed for use in machining operations. Compatible with CCMT 32.50.2, CCMT 32.50.5, CCMT 32.51, CCMT 32.52, CCMT 09T301, CCMT 09T302, CCMT 09T304, CCMT 09T308 inserts. boring bar made by ZCC