Positioning Calipers for Precise Measurements & Easy Wood Cutting, Stainless Steel Precision Cutting Guide for Circular Saws, Adjustable Guide Rail, Positioning Calipers for Circular Skill Hand Saw Key Features ? Adjustable Guide Rail: Easily adjust the guide rail to match the length of your circular saw. ? Sturdy Construction: Made from high-quality materials for durability and long-lasting use. ? Easy to Use: Simple setup and operation, perfect for beginners and experts alike. ? Versatile Application: Suitable for cutting various materials such as wood, plastic, and metal. How to Use 1. Attach the Guide Rail: Use the provided fixture to secure the guide rail at the edge of the workbench. Make sure it is firmly fixed. 2. Place the Circular Saw: Place the circular saw on the guide rail and align it with the ruler to ensure accuracy. 3. Cutting: Secure the Material: Use the fixture to firmly fix the material on the workbench. 4. Align the Saw: Adjust the position of the circular saw along the guide rail to align with the desired cutting line. 5. Make the Cut: Turn on the circular saw and gently guide it along the rail, following the ruler for straight cuts. Tips & Tricks Check Alignment: Before making a cut, double-check that the saw is properly aligned with the guide rail. Use a Straight Edge: When marking your cutting line, use a straight edge to ensure accuracy. Practice Safety: Always wear safety goggles and follow all safety precautions when operating a circular saw. Specification: Product name: Positioning Calipers Material: Stainless Steel Size: LxWxH: 54x9x4cm/20x3.6x1.6in Ruler thickness: 3mm/0.12in Parts List: 1 x Positioning Ruler 1 Set of Screw Accessories