GR-2357 KPMI, valve guide reamer 6mm. Manganese & cast iron

Precision is everything when you are working on 2017 to 2021 Milwaukee-Eight or 2002 to 2017 V-Rod cylinder heads. This Kibblewhite 6mm valve guide reamer is specifically designed for use with manganese bronze and cast iron guides. It features a high-speed steel construction with a nickel finish and a cutting diameter of 0.2357 inches, held to a tight tolerance of plus or minus .0002 inches. It is important to note that this tool is not intended for use with C630 nickel-aluminum-bronze guides. Also, once you have used this reamer on cast iron, you should avoid using it on bronze guides to maintain the cleanest possible cut. At over seven inches long, it provides the reach and stability needed for professional valvetrain work.