Product Description Used to remove or install valve guides 3-piece driver set includes: Black, .370" (3/8"); Bright zinc, .338" (11/32"); Gold, .307" (5/16") JIMS Valve Guide Driver Set at RevZilla Browse all RevZilla deals $49.99 In Stock at RevZilla Price verified today Buy Now at RevZilla Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand JIMS Size OS Condition New MPN 1001 JIMS