Here is a sheet of all five of the valve guide tools we offer for the serious engine rebuilder who needs these tools. These tools are primairly used for the thick wall bronze and cast iron valve guides and all of these tools have an approximate 7/16.437 diameter shank size. If you are working with a smaller OD valve guide that. 437 then you will need valve guide drivers specifically made for those guides. Further, they do not work with any thin wall insert sleeves.
The shank and pilot measures average 4.5 and the shank is turned to diameter for one inch of that. The kit contains one each of the tools which also correspond to similar metric sizes.
The tool pilots are undercut at the driving flange and that flange is also slightly tapered outward to help prevent inward mushrooming of the guide being driven. Sizes covered are as follows, 1/4" & 6.5MM, 9/32" - 7MM, 5/16" - 8MM, 11/32" - 8.7MM and 3/8 - 9.5 mm. Please note metric sizes may be a little loose in fit but will work. This really speeds up the task of removing and installing valve guides during a cylinder head reconditioning job. We recommend you use a fairly powerful air hammer to drive this tool, some of the cheaper or lighter weight air hammers have problem with stuck guides.
Please check our other listing for similar tools for larger and smaller valve guide remover and installer tools. This item is in the category "eBay Motors\Automotive Tools & Supplies\Other Auto Tools & Supplies".
The seller is "starcountryarizona" and is located in this country: US. This item can be shipped to United States.