Plain plug gauge P7

Title

P7 Plug Gauge 1–20mm | High Precision Double Ended Go No-Go Gauge Manufacturer Supplier

Description

P7 Plug Gauge is a precision measuring tool designed for accurate hole size inspection in machining and quality control processes. It offers a measuring range of 1mm to 20mm, P7 tolerance accuracy, and a double-ended go/no-go design, making it suitable for automotive, aerospace, precision machining, and metalworking industries. Manufactured from hardened tool steel, this gauge provides reliable performance for inspection, machining, and quality control applications.

SKU Table

Technical Specifications

• Product Name: Plug Gauge P7 Double Ended
• Category: Limit Gauge / Plug Gauge
• Range: 1mm – 20mm
• Accuracy: P7 tolerance grade
• Resolution: Not applicable (limit gauge)
• Material: Hardened tool steel
• Display: None (manual gauge)
• Output: None
• Structure Feature: Double-ended Go/No-Go design
• Standard: ISO/DIN tolerance system (P7)
• Brand: OEM / Customizable
• Model / Art No: 17-3217 Series

Applications

This product is suitable for:

• Precision hole inspection
• Go/No-Go tolerance verification
• Machining process control
• Incoming and final quality inspection

It is widely used in:

• Automotive manufacturing
• Aerospace components
• CNC machining workshops
• Metalworking and toolmaking industries

Selection Advice

This model is recommended for users who need fixed limit inspection with P7 tolerance for high-precision hole verification.

• For smaller tolerance classes (higher precision), consider H7 or H6 plug gauges
• For larger diameters, consider extended range plug gauges (>20mm)
• For faster measurement and data recording, consider digital bore gauges or air gauges

Key Features

• Double-ended Go/No-Go design for quick tolerance checking
• Laser-engraved size and tolerance on front, serial number on reverse
• Supplied with inspection report for traceability
• Hardened and wear-resistant tool steel construction
• Individual protective packaging (oil paper + plastic tube)

Packaging Details

• Each gauge is wrapped in oil paper
• Inspection report sealed in plastic bag
• Packed in transparent plastic tube with label
• Outer carton with shipping mark label

FAQ

1. What is the difference between models?

All models share the same design and P7 tolerance. The only difference is the diameter size (Ø1mm–Ø20mm). Each SKU corresponds to one specific size.

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

• Accuracy (P7): Defines allowable tolerance range for the hole
• Resolution: Not applicable for plug gauges since they are limit tools, not measuring devices

3. Manual vs Digital gauges – which should I choose?

• Plug Gauge (manual): Fast, reliable Go/No-Go inspection
• Digital tools: Provide actual measurement values but are slower and require calibration

For production lines, plug gauges are preferred for efficiency.

4. Which industries typically use plug gauges?

Common industries include:

• Automotive
• Aerospace
• Precision engineering
• Mold and die manufacturing

5. Is customization available?

Yes, customization options include:

• Special tolerance classes (H7, H6, etc.)
• Custom sizes outside standard range
• Logo engraving
• Calibration certificates per ISO standards