Feature: 1. The product is used to accurately and efficiently find the center of both round and square stock 2. Randomly draw two lines with this tool, the intersection point is the center of the circle 3. Aluminum alloy center finder is machined with multi-axis accurate equipment, sandblasted and anodized 4. 45 degree angle scribe possess torsion resistance, durability and corrosion resistance 5. Removable steel ruler can be used as a positioning unit, which can draw 45 degree line Specification: Item Type: 45 Degree angle scribe Positioner Material: Aluminum alloy Ruler Material: Steel Purpose: Scribing ruler, used for scribing diameter lines on round wooden blocks, 45 degree angle lineSize: Approx. 100mm / 3.9in 130mm / 5.1in 80mm / 3.1in 8mm / 0.3in 22mm / 0.9in. Package List: 1 x Ruler1 x Positioner1 x Hex Wrench