Ultra-precision marking ruler:When viewed from the side, it is difficult to draw accurate lines with traditional rulers, which usually also means inaccurate. Ultra-precision marking rulers have tiny holes and slits on each scale, allowing you to use a pencil in a circle Dot dots or mark precisely over the width of your hair! The scale with black marks and scales is easy to read. The surface is not reflective, and even tired eyes can mark the exact starting position in low light conditions. Select the appropriate slot or hole, insert a 0.5 mm mechanical pencil, and mark the measurement with a fixed accuracy. All rules are only 0.25 mm thick, so they must not be used for roughing! With this tool for proper care, you will be happy not only in the work you are doing, but also in drawing. A square ruler is exactly what you need for layout and measurement at the edge of a circuit board or other workpiece. There are ultra-fine marking holes on each scale line, allowing you to instantly locate sharp pencil tips or accurately scratch on the target with zero uncertainty and no eye fatigue!feature:With ultra-fine marking holes and slots. Accurate, versatile and easy-to-use T ruler. Position a sharp pencil or scribe with absolute precision. Zero uncertainty, zero parallax and zero eye fatigue instantly mark your location with ultra-thin and high-precision.specification:Material: stainless steel and PFLength: 180mm / 200mm / 300mm / 400mmRefill thickness: 0.5mmPackage Included:-1 * ruler + 0.5mm mechanical pencil + box of 0.5mm pencil lead
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