8-10mm Three Point Internal Micrometers for Stable Measurement
Product Overview
This series of three-point internal micrometers provides precise bore diameter measurement with exceptional stability and accuracy. Featuring self-centering three-point contact design, these tools are ideal for measuring blind holes, deep bores, and through holes.
Key Features
- Three-point micrometer centering self and aligning self
- Measurement capability close to blind bore bottoms and deep holes with extension rods
- Carbide-tipped contact points with ratchet stop
- Supplied with setting rings for calibration
- Included in fitted protective case
Technical Specifications
Available in multiple measuring ranges including 6-8mm, 8-10mm, 10-12mm, 12-16mm, 16-20mm, 20-25mm, 25-30mm, 30-40mm, and 40-50mm. Graduation is 0.001mm within 12mm/0.5" and 0.005mm over 12mm.
Metric Specifications
| Order No. |
Measuring Range |
Graduation |
Accuracy |
Setting Rings |
L1 |
A |
Extension Rods |
| KM-2315-8 |
6-8mm |
0.001mm |
±0.004mm |
Φ6mm |
54.5mm |
1.5mm |
100mm |
| KM-2315-10 |
8-10mm |
0.001mm |
±0.004mm |
Φ8mm |
54.5mm |
1.5mm |
100mm |
| KM-2315-12 |
10-12mm |
0.001mm |
±0.004mm |
Φ10mm |
54.5mm |
1.5mm |
100mm |
| KM-2315-16 |
12-16mm |
0.005mm |
±0.004mm |
Φ16mm |
80mm |
0.5mm |
150mm |
| KM-2315-20 |
16-20mm |
0.005mm |
±0.004mm |
Φ16mm |
80mm |
0.5mm |
150mm |
| KM-2315-25 |
20-25mm |
0.005mm |
±0.004mm |
Φ25mm |
90mm |
0.5mm |
150mm |
| KM-2315-30 |
25-30mm |
0.005mm |
±0.004mm |
Φ25mm |
90mm |
0.5mm |
150mm |
| KM-2315-40 |
30-40mm |
0.005mm |
±0.004mm |
Φ40mm |
97mm |
0.5mm |
150mm |
| KM-2315-50 |
40-50mm |
0.005mm |
±0.005mm |
Φ40mm |
97mm |
0.5mm |
150mm |
Inch Specifications
| Order No. |
Measuring Range |
Graduation |
Accuracy |
Setting Ring |
L1 |
A |
Extension Rods |
| KM-2315-0.35 |
0.275-0.35″ |
0.001″ |
±0.00016″ |
0.275″ |
2.18″ |
0.06″ |
4″ |
| KM-2315-0.42 |
0.35-0.42″ |
0.0001″ |
±0.00016″ |
0.35″ |
2.18″ |
0.06″ |
4″ |
| KM-2315-0.5 |
0.425-0.5″ |
0.0001″ |
±0.00016″ |
0.5″ |
2.18″ |
0.06″ |
4″ |
| KM-2315-0.65 |
0.5-0.65″ |
0.0002″ |
±0.00016″ |
0.65″ |
3.2″ |
0.02″ |
6″ |
| KM-2315-0.8 |
0.65-0.8″ |
0.0002″ |
±0.00016″ |
0.65″ |
3.2″ |
0.02″ |
6″ |
| KM-2315-1 |
0.8-1″ |
0.0002″ |
±0.00016″ |
1″ |
3.6″ |
0.02″ |
6″ |
| KM-2315-1.2 |
1-1.2″ |
0.0002″ |
±0.00016″ |
1″ |
3.6″ |
0.02″ |
6″ |
| KM-2315-1.6 |
1.2-1.6″ |
0.0002″ |
±0.00016″ |
1.6″ |
3.88″ |
0.02″ |
6″ |
| KM-2315-2 |
1.6-2″ |
0.0002″ |
±0.0002″ |
1.6″ |
3.88″ |
0.02″ |
6″ |
Operation & Maintenance
- Ensure measuring claw and scale are clean and dust-free to maintain measurement accuracy
- Perform calibration before use to verify correct initial reading
- Clean and apply anti-rust oil after each use to prevent corrosion
- Store in dry, ventilated, dust-free environment away from moisture and heat
- Not suitable for measuring holes with rough or burred surfaces
Applications
Three-point internal micrometers are primarily used for measuring holes and slotted holes. They are widely applied in machinery manufacturing, automotive manufacturing, aerospace, electronic components, and other industrial fields. With high measurement accuracy, ease of use, and simple operation, they have become essential tools for bore diameter measurement.
Company Information & Support
About Deko Corporation
Deko Corporation is dedicated to the development, manufacture, and marketing of KM brand precision measuring tools in China mainland.
Product Range
Dial indicators, micrometers, calipers, bore gauges, height gauges, dial thickness gauges, depth gauges, bevel protractors, gauge blocks, levels, and more.
Terms of Trade
We support FOB, CFR, CIF, and EXW.
Payment Methods
We accept T/T, L/C, D/A, D/P, PayPal, and etc..
Customization
Yes, OEM services are available.
After-Sales Service
One year warranty for all products. If you receive any defective accessories, we will ship replacement parts or new products. As an experienced manufacturer with strict calibration and inspection processes, you can trust our product quality.
