The left-hand spiral flute aids chip evacuation for smooth bore surfaces
repeatable seating in standard chucks and collets for quick setup and stable operation
The tool is specified to ISO H4 tolerance (D) to ensure tight hole sizes and reliable fitment in assemblies
repeatable hole sizes for critical assemblies and production runs
Accuracy: Known for consistent performance and tight tolerances over multiple uses
JBO Thread Ring Gauge (NoGo) - Metric Coarse - Left Hand - 6e - M20 x 2.5 Hydraulic Expansion Chucks The left-hand spiral flute aidsIntroducing the JBO Thread Ring Gauge (NoGo) Metric Coarse, Left Hand, 6e, M20 x 2. 5. This durable NoGo gauge quickly verifies external thread diameters, helping quality control teams, engineers, and shop floor staff ensure metric coarse threads meet required standards for reliable fitment. Precise No Go verification for quick, confident checks: Delivers clear pass fail indications on external threads, helping you identify non conforming parts fast