Measuring & Marking

Digital Caliper

Reads inside, outside, depth and step to 0.01 mm. The go-to when checking stock thickness and screw shanks.

Measure stage

Specification

Range	0–150 mm / 0–6 in
Resolution	0.01 mm / 0.0005 in
Accuracy	±0.02 mm
Display	LCD with mm-inch fraction toggle
Battery	SR44, auto-off
Body	Stainless steel

What it is for

Reads inside, outside, depth and step to 0.01 mm. The go-to when checking stock thickness and screw shanks. This guide covers what the tool does, the specification points that actually change your results, and how to use it without damaging the work or yourself.

Where it fits in the build

This is a measure stage tool in the Measuring & Marking category. Lay out accurate parts before any cut is made.

Measure Measuring & Marking

Using it well

Zero the caliper with the jaws closed at the start of each session.
Do not use it as a marking tool or a scribe — the jaws are ground for measuring only.
Clean the jaws of sawdust before a critical reading; a single grain is 0.3 mm of error.

Compatible materials

Materials this tool handles without compromise. Where a material is not listed, check that the tool is rated for it before committing to a cut.

Hardwood
Softwood
Plywood
MDF

Reference sample in 3D

The model above is a real maple reference block rendered in the browser. It is simulated from a height field rather than photographed, so you can rotate it to see how light behaves across the grain, the end grain and the edges. Drag it, or use the view buttons to look at the top face or the end grain in isolation.

Why this matters

Reading how light falls across a board is the fastest way to judge whether a surface is flat. That is the same judgement you make with a hand plane or a sander, and it is much easier to see on a rotating model than on a static photo.

Educational content only. Settings, capacities and safety guidance here are general starting points, not instructions for your specific tool, material or situation. Always follow your tool manufacturer's manual and any material datasheet, and check your own measurements before cutting.

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