• Closing Measuring Arms by Arm Switch Lever, then measuring internal diameter after inserting one a work piece grooves.
• Handy type for measuring a position of narrow groove, and the Contact point is hard metal.
• Coaxial revolution pointers type.
• After the gauge should be adjusted to minimum measuring range of each model (In case IM-880, 2.5mm ) by using a setting ring gauge, it is dial reading directly.
| Order No. | Graduation (mm) |
Measuring Range(mm) |
Indication Range (mm) |
Indication Error(μm) |
Repeatability (μm) |
Measuring Force(N) |
IP Rating | Weight (g) |
| IM-808 | 0.005 | 2.5-12.5 | 2.3-12.8 | ±15 | 5 | 0.8-1.2 | IP65 Equivalent |
160 |
| IM-816 | 0.005 | 5-15 | 4.7-15.3 | ±15 | 5 | 0.8-1.2 | 160 | |
| IM-821 | 0.01 | 10-30 | 9.5-30.5 | ±30 | 10 | 1.1-1.6 | 180 | |
| IM-831 | 0.01 | 20-40 | 19.5-40.5 | ±30 | 10 | 1.1-1.6 | 180 |
Usage Example
Internal Caliper Gauge
|
Internal dimension of deep position can be easily measured. |
Groove diameter of groove for "O" ring can be easily measured. (IM-808,IM-880 etc) |
Measurement evading from screw, nuts etc. can be made. |
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| แบรนด์สินค้า | TECLOCK |
|---|

| Order No. | Contact Point | A | B | C | D |
| IM-808 | R0.1 | 135 | 22.2 | 1.8 | 35 |
| IM-816 | Sφ0.6 | 135 | 23.6 | 4 | 35 |
| IM-821 | Sφ1.0 | 186 | 25.6 | 7 | 85 |
| IM-831 | Sφ1.0 | 186 | 23.9 | 4 | 85 |