SERRATIONS:All hand saws of the mini hand saw include progressive serrations to make the model more delicate, leaving a cut on smooth surface. SHARP:6 pieces of carving knife, with high hardness, high strength, corrosion resistance, no rust and other characteristics, the knife sharp is not easy to blunt and durable. CLEAR:The ruler adopts laser scale, the scale is clearly visible, wear-resistant and durable, not easy to wear, and the use is clear and clear.