A great tool for beginners or serious stained glass artisans. This tool is designed for scoring and breaking glass along a scored line. The running plier jaws apply even pressure on both sides of the score, allowing the crack to run smoothly through the glass. Best suited for straight cuts, though it performs well on gentle curves too. The jaws are precisely machined with a curved design, a key feature for controlled breaking. Rubber stops are internally lubricated to prevent drying out. Includes an easily adjustable set screw with proper threading for reliable performance. Equipped with rubber tips to help prevent damage to glass edges during use. Shape: Flat end Jaw width: 25mm Length: 205mm Instructions: Step 1: Hold the glass in one hand and the pliers in the other. Step 2: Position the plier edge parallel to the score line, approximately 1/4 inch from the edge. Step 3: Apply a quick upward and outward motion to complete the break. Step 4: For removing small edges or shaping, use the serrated section of the jaw. Size: 205 x 25mm Material: Steel + PVC Color: Red Package Contents: 1 x Flat mouth glass pliers Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.