Boring Bar Sleeve: 5/16" Bore Dia, 3/4" Shank Dia MPN:8816 .312

The boring bar sleeve is an essential tool used by professionals in the machining industry for finishing holes in workpieces with precision and accuracy. Its 5/16-inch bore diameter provides enough room for insert shanks, while its 3/4-inch shank diameter allows for stability during operation. This product comes with four-flute design for excellent chip removal capabilities, ensuring smooth performance even when machining high volumes of materials. It is also heat treated to reduce breakage and enhance durability in tough machining processes. With its versatility, precision, and reliability, the boring bar sleeve offers an excellent solution for professionals working with various materials such as aluminum, steel, stainless steel, brass, and cast iron.