About this product

【Great workmanship】The scribing line ruler has fine workmanship without burrs,widely used in various types of mechanical processing marking.

【Carbon steel material】The sliding line ruler is made of carbon steel ,has a long service life.

【Clear scale】Accuracy scribing line ruler adopts magnetic stripe engraving, it has clear scale and convenient reading.

【Locking knob design】The locking knob can fix the slide of the caliper, loosen it counterclockwise and tighten it clockwise.

【Durable enough】The sliding line ruler is durable, not easy to damage, do not need frequent replacement, very convenient.

1. Check if the zero mark on the main and auxiliary rulers is correct

No alignment, if aligned, it can be done

Measurement; If not aligned, zero should be recorded