JBO No.4 x 48TPI UNF Go Left Hand Thread Ring Gauge 2A UNF (Unified Fine) - 506449 Premium German made UNF Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 179.99 1
JBO 13/16in x 20TPI UNEF Go Left Hand Thread Ring Gauge 2A UNEF - 506493 Premium German made UNEF Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 279.99 1
JBO 15/16in x 20TPI UNEF Go Left Hand Thread Ring Gauge 2A UNEF - 506495 Premium German made UNEF Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 319.99 1
JBO 3/4in x 10TPI UNC Go Thread Ring Gauge 3A UNC (Unified Coarse) - 502797 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 219.99 1
JBO TR11 x 2mm Trapezoidal Go Thread Ring Gauge 7e Trapezoidal - 502510 Premium German made Trapezoidal Right Hand Go Thread Ring Gauge. For checking to a 7e tolerance. GBP 399.99 1
JBO 1 9/16in x 18TPI UNEF Go Thread Ring Gauge 2A UNEF - 506769 Premium German made UNEF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 369.99 1
JBO No.0 x 80TPI UNF Go Thread Ring Gauge 3A UNF (Unified Fine) - 502427 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 249.99 1
JBO No.2 x 64TPI UNF Go Left Hand Thread Ring Gauge 2A UNF (Unified Fine) - 506445 Premium German made UNF Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 199.99 1
JBO 7/8in x 1/2 1/2 1/2 1/29TPI UNC Go Left Hand Thread Ring Gauge 2A UNC (Unified Coarse) - 506408 Premium German made UNC Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 239.99 1
JBO 1 1/8in x 1/2 1/2 1/2 1/27TPI UNC Go Left Hand Thread Ring Gauge 2A UNC (Unified Coarse) - 506409 Premium German made UNC Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 309.99 1
JBO 3/4in x 16TPI UNF Go Thread Ring Gauge 3A UNF (Unified Fine) - 502463 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 199.99 1
JBO TR10 x 2mm Trapezoidal Go Thread Ring Gauge 7e Trapezoidal - 502508 Premium German made Trapezoidal Right Hand Go Thread Ring Gauge. For checking to a 7e tolerance. GBP 399.99 1
JBO 1 1/2in x 12TPI UNF Go Thread Ring Gauge 2A UNF (Unified Fine) - 502451 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 269.99 1
JBO 1 1/4in x 12TPI UNF Go Thread Ring Gauge 3A UNF (Unified Fine) - 503207 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 319.99 1
JBO 13/16in x 20TPI UNEF Go Thread Ring Gauge 2A UNEF - 501317 Premium German made UNEF Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 189.99 1
JBO 1 3/4in x 12TPI UN Go Thread Plug Gauge 2B UN (Unified) - 513514 Premium German made UN Right Hand Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 279.99 1
JBO TR8 x 1.5mm Trapezoidal Go Thread Ring Gauge 7e Trapezoidal - 502538 Premium German made Trapezoidal Right Hand Go Thread Ring Gauge. For checking to a 7e tolerance. GBP 369.99 1
JBO 1/2in x 28TPI UNEF Go Left Hand Thread Ring Gauge 2A UNEF - 503778 Premium German made UNEF Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 199.99 1
JBO No.1 x 72TPI UNF Go Thread Ring Gauge 3A UNF (Unified Fine) - 502429 Premium German made UNF Right Hand Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 209.99 1
JBO TR18 x 4mm Trapezoidal Go Thread Ring Gauge 7e Trapezoidal - 503375 Premium German made Trapezoidal Right Hand Go Thread Ring Gauge. For checking to a 7e tolerance. GBP 429.99 1
JBO No.1 x 72TPI UNF Go Left Hand Thread Ring Gauge 2A UNF (Unified Fine) - 506441 Premium German made UNF Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 209.99 1
JBO No.3 x 48TPI UNC Go Thread Ring Gauge 3A UNC (Unified Coarse) - 502387 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 199.99 1
JBO 5/8in x 18 UNJF Go Thread Ring Gauge 3B UNJF - 501423 Premium German Made UNJF Right Hand Go Thread Ring Gauge. For checking to a 3B tolerance GBP 219.99 1
JBO 7/8in x 14TPI UNF Go Left Hand Thread Ring Gauge 2A UNF (Unified Fine) - 502480 Premium German made UNF Left Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 239.99 1
JBO 1 1/2in x 1/2 1/2 1/2 1/26TPI UNC Go Thread Ring Gauge 2A UNC (Unified Coarse) - 502399 Premium German made UNC Right Hand Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 199.99 1