Feature: 1. Optimized design of ruler groove, just move the ruler to the required scale and tighten the screw 2. Easy to use and efficient, can help woodworkers improve efficiency, save time and effort 3. Steel rulers with the width of the ruler surface within the scope of the screw expansion can be used, and the applicable product specifications are rich in variety 4. The product material is made of good-quality aluminum alloy, which is sturdy and durable, exquisite and compact, and easy to carry 5. Woodworking scribing measuring positioner is a necessary hand tool Specification: Item Type: Woodworking Ruler Positioning Adjuster Material: Aluminum alloy Purpose: Woodworking marking and measuring positioner Applicable Steel Ruler: Maximum 30mmx2mm steel rule Minimum 24.5mmx0.3mm steel rule Package List: 1 x Woodworking Ruler Positioning Adjuster