Feature: PRECISION PRECISION - gives you the ultimate marking precision, alowing the user to accurately mark up to the mllimeter. The vermier scale and main scale were designed to slide smoothly into the main body and itwill ft on to objects pertectl. MULTI-FUNCTION (MEASUREMENT AND MARKING) . With one MULTI GAUGE caliper you can do 5 dferent things! From measuring 45 degrees, 90 degrees, depth, width to drawing lines. You can gauge the thickness and depth of the object just like any other vemnier calipers but also you can check the angles with combined miter and t-square. You can mark the object by uilizing the main scale as a ruler. Experience easier measure SOMETHING ABOUT VERSATILITY - MULTI GAUGE measuring tool is absolutely versatile. You can insert a straight ruler and this work as a vernier cliper. cliper comes with additional depth gauge accessory which is perfect for measuring items such as cylindrical rods, pipes and all kinds of angles. This depth gauge is also removable. You can fully customize the caliper with additional components based on the projects. EASY-TO-READ THERMAL - Each aluminum blade is preisely milled with state-of-the-art MCT equipment flloweld by sanding procedure and finishing touches. professional square ruler is constructed for maximum durbility. Blades are engraved with laser-marks on the scale with white markings on black smooth backgrounds for increased readabilty ! Specification: Metric & Inch Miter Square/T-Square/Marking Gauge/Depth Gauge/Scribe Tool Material: Aluminum alloy colour: Black Package Contents: 1 x Woodworking Tool Ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.