Stainless Steel Roller: This Scriber is equipped with a stainless steel roller, which is no longer limited to being parallel and can draw arcs. The scriber can glides against the circular edge of the workplece for smooth arc marking. It can be used for wood, ceramics, iron, acrylic and other materials. Accurate Marking: The rod of the plotter is marked with a laser scale, the scale is clearly visible, and it can also be used as a depth gauge, which can meet linearity and bending requirements at the same time, making it easier to use and high-precision measurement. Tungsten Steel Blades:Tungsten steel blades are added to the woodworking liner. Using sharp and smooth tungsten steel blades makes it easier to draw lines and arcs and make your work easier. Universal Type Pen Holder: Large diameter paper clips can accommodate different sizes of pens, refills, drawing pins, and pencils.The extra sharp cutter is hardened and marks a keen accurate line, easily cuts wood fibres preventing grain tear out. Aluminum Alloy Body: Made of high-quality aluminum alloy, it has a comfortable grip, wear-resistant, scratch-resistant and long service life.