[Slide Rule with Stop]There's a fine in of the ruler. Set your stop, place a pencil in the , and you've got an instant marking gauge. The beefy stop is secured with two thumb screws keeping it locked to the ruler. it off the ruler and through the slot in the rule blade can help stop and fix at any position, effectively prevent slippage.This helps with making repetitive measurements on multiple boards. [Accurate Woodworking Ruler]With Inch and Metric Indicators, this steel ruler can be converted into the required woodworking measurement unit immediately since there are measuring scales on both sides. All four edges feature an engraved scale incremented every 1/16th or 1mm depending on style. The is anodized, laser-marking, the scale is clear and accurate, it is easy to read. [Vertical Measurement T Track Ruler]When you need vertical measurement slide the stop off and insert it into the cut-out blade and then your rule has a perfect stand to keep it upright. The side is marked with 1/4, 1/2, and 3/4 depth measurement units, which can meet a variety of measurement needs. scribing ruler for woodworking, DIY, handicrafts, etc. It is an perfect measuring tool for carpenters. The color of the screw is random, you cannot choose to specify size:15cm Material:Metal colour:Black Package Contents: 1 x Woodworking Ruler(screw color is random, don't accept the specified color.) 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.