Highly Precise M42X1.00 6H Metric Thread Plug Gauge with Left Hand for Testing Tapped Holes
These metric plug ring gauges are precision metrology tools designed for checking threaded or tapped holes. They verify proper thread type, major diameter, minor diameter, pitch diameter, and pitch against a mating thread gauge.
Key Features
- Metric thread plug gauge for accurate thread verification
- Available in various accuracy grades: 5g, 5h, 6g, 6h, 7g, 7h
- Multiple types available: GO, NO GO, and combination GO/NOGO
- Conforms to DIN13 standard
- Wear-resistant and corrosion-resistant construction
- Stable structure for easy operation
- Supplied in protective fitted case
Specifications
| Order No. |
Size |
Coarse |
Fine |
Accuracy |
| KM-P180 |
M18.0 |
2.50 |
2.00 |
4h 4h5h 5g 5h 5h6h 6g 6h 7g 7h |
| KM-P320 |
M320 |
|
|
|
Applications
These thread plug gauges are essential tools for inspecting thread dimensions in various industries including automotive manufacturing, aerospace, machining, and electronic processing. They help ensure thread accuracy and improve product quality control.
Usage Precautions
- Avoid touching the working surface with bare hands to prevent rust
- Store properly on stable surfaces, not on machine tool holders or guide rails
- Regularly inspect for damage, rust, or deformation
- For rust removal, soak in gasoline, wipe carefully, and apply anti-rust oil
- Never store working surfaces of two gauges together
- Clean thoroughly after use and store in dry conditions
Packing & Shipping

Company Profile
Deko Corporation specializes in the development, manufacture, and marketing of KM brand precision measuring tools in China mainland.
Frequently Asked Questions
Product Range: We carry dial indicators, micrometers, calipers, bore gauges, height gauges, and various other precision measuring tools.
After-Sales Service: All products come with one year warranty. Defective items will be replaced promptly. Our strict calibration and inspection processes ensure product quality.