Sliding Line Ruler Precision Carbon Steel Ruler Woodworking Parallel Ruler Marker Gauge Marking Tool (200mm)

【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. No alignment, if aligned, it can be done Measurement; If not aligned, zero should be recorded error For example: The zero scale on the secondary ruler is on the main scale Between 11 and 12, the scale on the main ruler Indicating 11cm (110mm); From the graph Because the Lord See, the integer is 112mm The 112th line of the ruler is close to the "0" of the secondary ruler To the right of the line; The third line of the secondary scale and the main ruler If the root line is aligned, the decimal is Therefore, read twice The sum of the numbers is 112.3mm

• Check if the zero mark on the main and auxiliary rulers is correct
• The scale on the main ruler is in centimeters, for example
• 1mmx3=0.3mm