Porting Tool: 1.0669" Spotface Dia, Reamer MPN:6149-M20X1.5

Perfect for engine builders or machine shops, our premium quality spotfaced porting tool has been specifically designed to deliver a uniformed and accurate 35 degree counterbore with each pass. Featuring a robust heat-treated carbide head measuring 1.0669 inches in diameter and capable of cutting through hardened steel or cast iron material, this essential reamer is the go-to tool for improving airflow into combustion chambers, fixing engine backfiring or intake manifolds. Save time and increase efficiency while making the perfect port every single time - the porting tool can be used with ease in conjunction with a drill press or other rotary table systems!