The Challis Frame Repair Tap is a proprietary tap used to cut .255-60 threads in a 1911 frame for repair (oversized) bushings, when the standard threads in a frame have been stripped. .255" – 60 TPI No drilling required The Challis Frame Repair Tap has a special grind that reams the hole to size prior to cutting the threads, saving the need to drill the hole to size. Mfg: Challis Grips
Challis Grips Challis Oversize Thread Bushing Tap
$29.98
Repairing Stripped 1911 Threads Made Easy