The PILOT PACKS Clymer 6MM CALIBER BUSHING PACK includes two pilots for Clymer piloted reamers, one smaller and one larger than the standard size, with tolerances of +.0000/-.0002.
Each bushing pack contains one each of two bushings, with the smaller bushing being .0004 inches less and the larger being .0004 inches more than the standard bushing size for various calibers.
The product is manufactured by Clymer and is categorized under home products, specifically designed for precision work in firearm maintenance and customization.