JBO 3/8in x 16TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502413 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 69.99 1
JBO No.8 x 32TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502396 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 64.99 1
JBO 5/16in x 18TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502416 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 64.99 1
JBO No.12 x 24TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 505676 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 69.99 1
JBO 3/8in x 24TPI UNF Go Thread Ring Gauge 2A UNF (Unified Fine) - 502466 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 83.99 1
JBO No.6 x 32TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502393 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 69.99 1
JBO No.10 x 32TPI UNF Go Thread Ring Gauge 2A UNF (Unified Fine) - 502430 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 74.99 1
JBO No.4 x 40TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502388 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 79.99 1
JBO No.12 x 28TPI UNF Go Thread Ring Gauge 2A UNF (Unified Fine) - 502433 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 71.99 1
JBO 7/16in x 20TPI UNF Go Thread Ring Gauge 2A UNF (Unified Fine) - 502475 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 72.99 1
JBO 5/16in x 24TPI UNF Go Thread Ring Gauge 2A UNF (Unified Fine) - 502469 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 77.99 1
JBO 1/4in x 20TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502406 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 60.99 1
JBO 1/2in x 13TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502404 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 76.99 1
JBO 7/16in x 14TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502421 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 69.99 1
JBO 1/4in x 28TPI UNF Go Thread Ring Gauge 2A UNF (Unified Fine) - 502458 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 72.99 1
JBO No.5 x 40TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502392 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 73.99 1
JBO 9/16in x 12TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502425 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 83.99 1
JBO No.10 x 24TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502379 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 62.99 1
JBO M10 x 1mm Metric Fine Go Thread Ring Gauge 6g Metric ISO - 501470 Premium German made Metric Fine Right Hand Go Thread Ring Gauge. For checking to a 6g tolerance. GBP 80.99 1
JBO M8 x 1.25mm Metric Coarse Go Thread Ring Gauge 6g Metric ISO - 502301 Premium German made Metric Coarse Right Hand Go Thread Ring Gauge. For checking to a 6g tolerance. GBP 56.99 1
JBO M4 x 0.7mm Metric Coarse Go Thread Ring Gauge 6e Metric ISO - 502051 Premium German made Metric Coarse Right Hand Go Thread Ring Gauge. For checking to a 6e tolerance. GBP 74.99 1
JBO M8 x 1mm Metric Fine Go Thread Ring Gauge 6e Metric ISO - 502325 Premium German made Metric Fine Right Hand Go Thread Ring Gauge. For checking to a 6e tolerance. GBP 83.99 1
JBO 1/2in x 13TPI UNC No-Go Thread Ring Gauge 2A UNC (Unified Coarse) - 501078 Premium German made UNC Right Hand No-Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 76.99 1
JBO M9 x 1.25mm Metric Coarse Go Thread Ring Gauge 6g Metric ISO - 502347 Premium German made Metric Coarse Right Hand Go Thread Ring Gauge. For checking to a 6g tolerance. GBP 69.99 1
JBO No.12 x 28TPI UNF No-Go Thread Ring Gauge 2A UNF (Unified Fine) - 501106 Premium German made UNF Right Hand No-Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 71.99 1