Chadwick & Trefethen Gilchrist Precision Choke Reamer

Enters through the breech and pilots off the bore for precise cutter to bore alignment. Expandable, angle blade reamer fine tunes choke size to improve patterns or removes choke prior to screw-in choke tube installation. Requires two Clymer Choke Tooling Bushings to center the cutter in the bore. Requires purchase of the Gilchrist Handle and two of the proper Clymer bore bushings for use with any of the reamers. Mfg: Chadwick & Trefethen SPECS: Steel. Handle 25- 1/2" (65cm) long. Reamers 13" (33cm) long. Expansion range: 20gauge "C" .593"- .656". 12gauge "D" .656" – .718". "E" .718" – .781". Select correct diameter bushing for 12 and 20 gauge from Clymer ch