: : Made of aluminum alloy. the surface is black sanded and anodized, wear-resistant, rust-proof, and comfortable to touch Laser marking, clear reading, with a resolution of 0.05mm, which makes the reading more accurate T-angle square design, can measure , 90 degrees, 135 degrees and draw lines, with a magnet on the back, it is convenient for you to work in special scenes and play a fixed role Not only realizes the function of ordinary vernier caliper, but also increases the function of angle measurement and marking Detachable base, you can use other components to completely customize the caliper according to the project. Specification: Range: T-type head is 0-100mm, main scale is 0-210mm, and the upper and lower rows of scales are convenient for measuring width and depth. Size Chart: Size: 232x100nmm / 9.13x3.94inch Package Includes: 1 Piece Woodworking T Ruler