•Capacity: 5/16" to  5/8" (8 to 16mm).
•Use manually or with 1/4” electric drill.
•Valve guides cleaned with this tool are really cleaned with no gum, no carbon and no scale left.
•Blades of flat spring stock are extremely flexible and give a fine cutting action.
•Correct tension for various guide hole sizes is regulated by the adjusting nut.
 

•Capacity: 5/16" to  5/8" (8 to 16mm).
•Use manually or with 1/4” electric drill.
•Valve guides cleaned with this tool are really cleaned with no gum, no carbon and no scale left.
•Blades of flat spring stock are extremely flexible and give a fine cutting action.
•Correct tension for various guide hole sizes is regulated by the adjusting nut.