Insize Metric Thread Ring Gage M50 × 3 mm Class 6g GO Ring Gage Series 4129-50V Plastic Rod Cover Limit Switch Easy Opening Mechanism: Designed to Somta Series 107 – 1/16 - 1/2" X 1/64 Jobber Drill Set The optional setting ring 1103-200

Easy Opening Mechanism: Designed to open using most angle grinder keys

providing long-term durability and reliable thread reinforcement

Designed to hold workpieces securely for milling

✅ Strong & Accurate Thread Formation – ISO 2 (2B) tolerance ensures secure and precise UNC 1/4" threads

and general repair applications

Insize Metric Thread Ring Gage M50 × 3 mm Class 6g GO Ring Gage Series 4129 50V Plastic Rod Cover Limit Switch Easy Opening Mechanism: Designed to Somta Series 107 – 1 16 1 2" X 1 64 Jobber Drill Set The optional setting ring 1103 200 Easy Opening Mechanism: Designed to open using most angle grinder keys providing long term durability and reliable thread reinforcement