Features: Made of high-quality materials, providing high strength, high hardness, and durability. Uses small adjustable magnets to help install planer blades with precise alignment. Equipped with heavy-duty magnets capable of holding blades up to 20 inches in length. Designed for ease of use with no need to disassemble components. Compatible with all makes and models of planers, jointers, and combination planer/thicknessers. Suitable for use on planers, jointers, and molder heads with cutterheads ranging from 2-9/16 inches to 5-1/8 inches. Designed for precise blade leveling adjustment. Includes two planer blade calibrators, each set within a magnetic framework for secure attachment to the cutter head. Simply place the gauge assembly over the cutting tool and adjust to the correct height. Simplifies setting and adjusting cutting tools by stabilizing the blade during installation. Helps save time when mounting and aligning planer blades. Specifications: Minimum cutter shaft diameter: 75mm Maximum cutter shaft diameter: 125mm Height adjustment range: 22mm Incremental adjustment: 0.15mm Magnetic Planer Knife Blade Setting Jig Height Setter Tool Keeps hands free while adjusting jigs and cutter head Maintains knife alignment during setup Easy to use Material: Metal Color: Black Package Contents: 2 x Planer Blade Calibrators Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3cm.