The INSIZE 1312‑300A Dial Caliper is a robust mechanical measuring instrument designed for reliable and accurate measurement tasks. Its dial display provides quick, intuitive reading, and the shockproof mechanism protects the internal indicator from impacts during shop use.
With a full measuring range of 0 to 300 mm, this caliper suits many standard workshop and inspection applications. It features a thumb roller for smooth jaw motion, fine adjustment control, and durable construction in stainless steel. The graduation is 0.02 mm, and its accuracy tolerance is ±0.03 mm.
This caliper is well-suited for measuring external, internal, depth, and step dimensions in machining, engineering, and quality control workflows. Because it is fully mechanical, it works reliably without batteries or electronics — ideal for environments where digital tools may be less reliable.
Key Features:
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Dial caliper with shockproof dial indicator
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Measuring range 0–300 mm / 0–12″
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Graduation: 0.02 mm
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Accuracy: ±0.03 mm
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Thumb roller for smooth jaw movement
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Fine adjustment control
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Measures external, internal, depth, and step dimensions
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Durable stainless steel body
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Mechanical (no battery required)
Specifications Table:
| Specification |
Value |
| Measuring Range |
0 – 300 mm |
| Graduation / Resolution |
0.02 mm |
| Accuracy |
±0.03 mm |
| Length (L) |
410 mm |
| a (jaw width) |
28 mm |
| b |
22 mm |
| c |
20 mm |
| d |
62 mm |
| Dial Diameter (Ø) |
44.5 mm |
| Dial Thickness (t) |
7.5 mm |
| Thumb Roller |
Yes |
| Material |
Stainless Steel |
