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 89.99 1
JBO 3/8in x 24TPI UNF No-Go Thread Ring Gauge 2A UNF (Unified Fine) - 501137 Premium German made UNF Right Hand No-Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 89.99 1
JBO 3/8in x 16TPI UNC No-Go Left Hand Thread Ring Gauge 2A UNC (Unified Coarse) - 501087 Premium German made UNC Left Hand No-Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 129.99 1
JBO 3/8in x 16TPI UNC No-Go Thread Ring Gauge 3A UNC (Unified Coarse) - 501086 Premium German made UNC Right Hand No-Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 129.99 1
JBO 3/8in x 19TPI BSP (g) Go Thread Ring Gauge A BSP (g) (British Standard Pipe) - 501399 Premium German made BSP (G) Right Hand Go Thread Ring Gauge. For checking to a A tolerance. GBP 91.99 1
JBO 3/8in x 24TPI UNF No-Go Thread Ring Gauge 3A UNF (Unified Fine) - 501138 Premium German made UNF Right Hand No-Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 129.99 1
JBO 3/8in x 16TPI UNC No-Go Thread Ring Gauge 2A UNC (Unified Coarse) - 501085 Premium German made UNC Right Hand No-Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 75.99 1
JBO 3/8in x 24TPI UNJF Go/No-Go Thread Plug Gauge 3B UNJF - 511611 Premium German made UNJF Right Hand Go/No-Go Thread Plug Gauge. For checking to a 3B tolerance. GBP 129.99 1
JBO 3/8in x 24TPI UNF Go/No-Go Thread Plug Gauge 2B UNF (Unified Fine) - 512462 Premium German made UNF Right Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 99.99 1
JBO 3/8in x 32TPI UNEF Go/No-Go Left Hand Thread Plug Gauge 2B UNEF - 517354 Premium German made UNEF Left Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 169.99 1
JBO 3/8in x 19TPI BSP (g) No-Go Thread Ring Gauge B BSP (g) (British Standard Pipe) - 500105 Premium German made BSP (G) Right Hand No-Go Thread Ring Gauge. For checking to a B tolerance. GBP 429.99 1
JBO 3/8in x 16TPI UNC Go/No-Go Thread Plug Gauge 2B UNC (Unified Coarse) - 512408 Premium German made UNC Right Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 79.99 1
JBO 3/8in x 24TPI UNF Go/No-Go Left Hand Thread Plug Gauge 2B UNF (Unified Fine) - 512464 Premium German made UNF Left Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 139.99 1
JBO 3/8in x 24TPI Sti UNF Go/No-Go Thread Plug Gauge 2B Sti UNF (Unified Fine) - 512715 Premium German made STI UNF Right Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 219.99 1
JBO 3/8in x 19TPI BSP (g) Go/No-Go DLC Coated Thread Plug Gauge BSP (g) (British Standard Pipe) - 512729 Premium German made BSP (G) Right Hand Go/No-Go Thread Plug Gauge. These come with a DLC coating for longer tool life. GBP 209.99 1