JBO No.4 x 40TPI UNJC Go Thread Ring Gauge 3A UNJC - 503593 Premium German made UNJC Right Hand Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 199.99 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.4 x 48TPI UNF No-Go Thread Ring Gauge 3A UNF (Unified Fine) - 501113 Premium German made UNF Right Hand No-Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 169.99 1
JBO No.4 x 40TPI UNC No-Go Thread Ring Gauge 3A UNC (Unified Coarse) - 501065 Premium German made UNC Right Hand No-Go Thread Ring Gauge. For checking to a 3A tolerance. GBP 149.99 1
JBO No.4 x 48TPI UNF No-Go Left Hand Thread Ring Gauge 2A UNF (Unified Fine) - 506463 Premium German made UNF Left Hand No-Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 169.99 1
JBO No.4 x 40TPI UNC No-Go Left Hand Thread Ring Gauge 2A UNC (Unified Coarse) - 504045 Premium German made UNC Left Hand No-Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 149.99 1
JBO No.4 x 40TPI UNC No-Go Thread Ring Gauge 2A UNC (Unified Coarse) - 501063 Premium German made UNC Right Hand No-Go Thread Ring Gauge. For checking to a 2A tolerance. GBP 79.99 1
JBO No.4 x 40TPI UNC Go/No-Go Thread Plug Gauge 3B UNC (Unified Coarse) - 512377 Premium German made UNC Right Hand Go/No-Go Thread Plug Gauge. For checking to a 3B tolerance. GBP 145.99 1
JBO No.4 x 40TPI UNC Go/No-Go Thread Plug Gauge 2B UNC (Unified Coarse) - 512375 Premium German made UNC Right Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 91.99 1
JBO No.4 x 40TPI UNJC Go/No-Go Thread Plug Gauge 3B UNJC - 511603 Premium German made UNJC Right Hand Go/No-Go Thread Plug Gauge. For checking to a 3B tolerance. GBP 179.99 1
JBO No.4 x 40TPI UNC Go/No-Go Left Hand Thread Plug Gauge 2B UNC (Unified Coarse) - 514701 Premium German made UNC Left Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 161.99 1
JBO No.4 x 40TPI Sti UNC Go/No-Go Thread Plug Gauge 2B Sti UNC (Unified Coarse) - 512692 Premium German made STI UNC Right Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 211.99 1
JBO No.4 x 40TPI Sti UNC Go/No-Go Thread Plug Gauge 3B Sti UNC (Unified Coarse) - 512693 Premium German made STI UNC Right Hand Go/No-Go Thread Plug Gauge. For checking to a 3B tolerance. GBP 329.99 1
JBO No.4 x 48TPI Sti UNF Go/No-Go Thread Plug Gauge 2B Sti UNF (Unified Fine) - 513095 Premium German made STI UNF Right Hand Go/No-Go Thread Plug Gauge. For checking to a 2B tolerance. GBP 229.99 1