The caliper features stainless steel ruler and alloy base, the angle ruler is sturdy and durable. The digital height ruler is specially designed for woodworking and can be used to adjust the height of the saw blade and the height of the woodworking cutter and set the distance. Measuring range from 0 to 300 mm, it is adjustable to measure right angle, 45 angle, 45 slope, length, depth and width. The level gauge design helps to measure accurately. Easy to use, a professional engineer measuring tool. 1.Multifunctional Team: Scriber and Depth Gauge Made of stainless steel, 30 cm blade with metric and imperial graduations. Ideal solution for measuring and marking straight lines, but also radii and circles. The nut on the angle ruler is fixed, the ruler is removable, easy to use and carry 2.Multiple uses and functions Metric and imperial graduations Multifunctional measuring, tracking and drawing square, with horizontal bubble, can be used at 180 degrees, 135 degrees, 90 degrees, 45 degrees, accurate and practical square 3.Exquisite workmanship Laser ticks make the scale clear and wear-resistant, easy to read The bar is made of 2Cr13 stainless steel, forged and sealed, reaches a hardness of HRC30 or more, with a solid seal, fire-resistant. 4.Easy to use The nut on the angle ruler is fixed, the ruler is removable, easy to use and carry. The base is made of high-quality zinc alloy, more intense and durable, by rotating the nut, you can adjust the length of the ruler. 5.Specifications: Material: Stainless Steel + Zinc Alloy Color: Black Measuring Range: 0~300mm Overall Size: Approx. 30.5*12cm/12.01*4.72in Quantity Sold: 1 pc