Plain plug gauge H7

Title

H7 Plug Gauge 1–100mm | DIN7162 Go No-Go Limit Gauge Manufacturer Supplier

Description

H7 Plug Gauge is a precision measuring tool designed for hole tolerance verification and pass/fail inspection in machining and quality control processes. It offers a measuring range of 1mm to 100mm, H7 tolerance accuracy, and a go/no-go limit gauge design, making it suitable for automotive, aerospace, precision engineering, and general manufacturing industries. Manufactured from hardened tool steel, this tool provides reliable and repeatable performance for inspection, machining, and quality control applications.

SKU Table

Full size coverage: Ø1mm – Ø100mm (individual SKUs per size)

Technical Specifications

• Product Name: Metric Plug Gauge H7 (Go/No-Go)
• Category: Limit Gauge / Plug Gauge
• Range: 1mm – 100mm
• Accuracy: H7 tolerance grade
• Resolution: Not applicable (limit gauge)
• Material: Hardened tool steel
• Display: None (manual gauge)
• Output: None
• Structure Feature: Go/No-Go double-ended design
• Standard: DIN7162 / DIN7164
• Brand: OEM / Customizable
• Model / Art No: 17-3117 / 17-3190 Series

Applications

This product is suitable for:

• Precision hole tolerance verification
• Go/No-Go inspection in production lines
• Machining process control
• Final quality inspection

It is widely used in:

• Automotive manufacturing
• Aerospace engineering
• CNC machining and tooling
• General industrial production

Selection Advice

This model is recommended for users who need H7 tolerance hole inspection for standardized fits and interchangeable parts.

• For tighter tolerance control, consider H6 or P7 plug gauges
• For smaller range applications, consider mini plug gauge sets (<1mm)
• For real-time dimensional readings, consider digital bore gauges or air gauges

Key Features

• Go/No-Go limit design for fast pass/fail inspection
• Clear engraving of size and tolerance on handle
• Compliant with DIN7162 / DIN7164 standards
• Durable hardened steel for long service life
• Individual plastic box packaging with labeled specification

Packaging Details

• Each gauge packed in plastic bag
• Inserted into transparent square plastic box
• External label indicates size and tolerance
• Suitable for storage, transport, and inventory management

FAQ

1. What is the difference between models?

All models share the same H7 tolerance and design. The only difference is the diameter size (Ø1mm–Ø100mm). Each SKU corresponds to one specific size.

2. Accuracy vs Resolution – what’s the difference?

• Accuracy (H7): Defines the allowable deviation range for the hole size
• Resolution: Not applicable, since this is a limit gauge without numerical reading

3. Manual vs Digital measurement tools – which should I choose?

• Plug Gauge: Fast, reliable Go/No-Go inspection for production
• Digital Tools: Provide actual measurement values but are slower and require calibration

Plug gauges are ideal for high-efficiency batch inspection.

4. Which industries use H7 plug gauges?

Typical industries include:

• Automotive
• Aerospace
• Precision machining
• Equipment manufacturing

5. Is customization available?

Yes, available options include:

• Other tolerance classes (H6, G7, P7, etc.)
• Special sizes or non-standard dimensions
• Custom engraving (logo, serial number format)
• Calibration certificates compliant with ISO standards