Patent ID: 6109839
Filing Date: 2000-08-29
Classification: B23B,Y10T

Abstract:
A kit for repairing an out of tolerance precision bore comprising:a first structure having an enlarged out of tolerance precision bore therein with the bottom most portion thereof remaining in precise tolerance;a sacrificial pin for placement within said out of tolerance bore, co-axially centered therein by said bottom most portion thereof and fixedly attached therein;a template for placement over said first structure and attached thereto, said template having an aperture for receiving said sacrificial pin therein for locating said template in a precise location relative to said first structure;a tubular boring guide having an inner tubular surface larger in diameter than the maximum diameter of the walls of said out of tolerance bore, the center line of said boring guide and said sacrificial pin being substantially co-axial; said boring guide being fixedly attached to said template; anda drilling means guided in close tolerance with the inner surface of said boring tool for drilling through said aperture in said template, drilling out said sacrificial pin and said first structure thereby establishing an enlarged precisely located precision bore, said tubular boring guide being removed from said template after establishing a new enlarged precision bore.