GR-3110 Kpmi, valve guide reamers 0.3110 hss

The Kibblewhite .3110" (7.8994mm) valve guide reamer is a specialized high-speed steel tool designed for the precise sizing of 5/16" valve guides. It is compatible with a wide range of materials, including standard cast iron and high-performance bronze alloys such as manganese, C630, and Ampco-45. This reamer is used to ensure that valve guides are perfectly sized for the valve stems, preventing premature wear and ensuring efficient engine operation. The HSS construction provides the hardness necessary to maintain sharp cutting edges through repeated use, making it a reliable choice for technicians working on American V-twin engines.