Features Precision Metric Unit Scale: Designed with a clear metric unit scale for easy and accurate readings, ensuring perfect hole placements every time Durable Aluminum Alloy Construction: Crafted from high-quality Features: 1、Fine Workmanship Manufacturing: Fine workmanship manufacturing, quality assurance, accurate scale, convenient 2、Metric Imperial Unit Scales: Metric and imperial unit scales, convenient and practical measurement readings 3、Uses: Used for woodworking tools, right angle fixing, positioning, height, length measurement 4、Aluminum Alloy Body: Made of aluminum alloy body, solids treatment, and 5、Easy to Use: The positioning ruler is easy to use, making your work easier and simpler Specification: Item Type: Positioning Squares Material: Aluminum Alloy Colour: Red Scale Range: Approx. 10-120mm / 0.40-4.72in Scale System: Imperial, Metric Fixed Angle: 45°/90° Purpose: Woodworking Package List: 1 x Positioning Ruler 2 x Positioning Block 2 x Right Angle Screw Rod 2 x Plastic Handle Note: Do not use in special environments such as strong acid, otherwise will reduce the service life Package List 1 x Positioning Ruler 2 x Positioning Block 2 x Right Angle Screw Rod 2 x Plastic Handle