The JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M70 x 1.5 is a precision external-thread gauge used to verify that threaded parts conform to exact metric specifications.
Designed for engineers, machinists, quality-control professionals, and workshop technicians, it enables fast, confident checks of M70 x 1.5 left-hand threads (6g class) to ensure parts meet size and pitch requirements.

• Fast GO checks for M70 x 1.5 left-hand threads (6g): Quickly verify external threads against the GO limit, delivering a clear pass/fail result and reducing inspection time.
• Robust, wear-resistant construction: Hardened steel resists wear and corrosion, delivering long tool life in demanding environments.
• Left-hand metric thread compatibility: Specifically calibrated for left-hand, metric fine threads, ensuring precise measurements and reliable results.

Using this gauge streamlines inspection workflows by providing clear, objective pass/fail results for external threads. Its rugged, wear-resistant construction maintains accuracy across shifts, reducing recalibration and rework while standing up to daily use in busy workshops. With reliable performance on left-hand metric threads, it helps you certify parts faster, improve overall quality, and keep production moving smoothly.