MSBG GO/NOGO Thread Plug Gauge Set M3-M12, 7 Pairs (14 Pieces), Metric ISO 6H

The MSBG GO/NOGO gauge set M3-M12 is a professional thread plug gauge kit designed for precise internal thread inspection. This set includes 7 pairs (14 individual gauges) covering the most common metric thread sizes from M3 to M12, manufactured to ISO 1502 and DIN 13 / ISO 965 standards. Each gauge is made from GCr15 tool steel with a hardness of 58-62 HRC, precision ground for accuracy and durability. The double-ended design features GO and NOGO ends for quick pass/fail testing. The set comes in a protective aluminum alloy case for safe storage and transport.

Advantages

Comprehensive set covering M3 to M12 metric threads; high-quality tool steel construction ensures long service life; precision ground surface finish for reliable measurements; double-ended gauges save time during inspection; includes a sturdy aluminum case for organization.

Suitable for

• Quality control and inspection of internal threads in manufacturing
• Mechanical workshops and maintenance departments
• Automotive, aerospace, and general engineering applications
• Education and training in metrology

Key specifications

• Product Type: Thread Plug Gauge Set
• Gauge Type: GO/NOGO Limit Gauge
• Thread Standard: Metric ISO (M Profile)
• Thread Sizes Included: M3x0.5, M4x0.7, M5x0.8, M6x1.0, M8x1.25, M10x1.5, M12x1.75
• Number of Pieces: 7 pairs (14 individual gauges)
• Tolerance Class: 6H (for internal threads)
• Material: GCr15 Tool Steel
• Hardness: 58-62 HRC
• Accuracy Standard: ISO 1502
• Application: Internal Thread Inspection
• Thread Profile Angle: 60 degrees
• Surface Finish: Precision Ground
• Case Material: Aluminum Alloy
• Calibration Certificate: Available upon request
• Manufacturing Standard: DIN 13 / ISO 965
• Measurement Range: M3 to M12
• Gauge Handle Type: Double-ended

Recommendations

For best results, use this gauge set in a clean, temperature-controlled environment. Calibration is recommended annually or as per your quality system requirements. A calibration certificate can be provided upon request.