Features: Made of high-quality materials, offering high strength, high hardness, and practicality. Uses tiny adjustable magnets to help install your planer blade with precise alignment. Equipped with heavy-duty magnets that can hold blades up to 20 inches in length. Thoughtfully designed for ease of use without the 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 cutter heads ranging from 2-9/16 inches to 5-1/8 inches. Designed for precise leveling adjustment. Includes two planer blades, 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 in the cutter head by stabilizing the blade. Helps save time and effort during planer setup.Specifications: Minimum cutter shaft diameter: 75mm. Maximum cutter shaft diameter: 125mm. Height adjustment: 22mm. Incremental adjustment: 0.15mm. Magnetic planer knife blade setting jig height setter tool. Leaves hands free to adjust jigs and cutter head. Keeps knives in perfect alignment during setup. Easy to use. Material: Metal. Color: Black.Package Contents: 2 x Planer Blade CalibratorsNote: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement allowance is +/- 1-3cm. Only the items listed are included; other accessories are not part of the package.