Features: Adjustable woodworking tool, cutting blade, calibrator jig gauge adjustment Suitable for all makes and models of Surface Planers, Jointers and Combination Planer/Thicknessers Can be used on planers and joiners, even mold heads with 2-9/16" to 5-1/8" cutterheads Designed to adjust leveling blades precisely With two planer blades, each in a frame with magnets for firm attachment to a cutter head. Simply place the gauge assembly on the cutting tool, then adjust the correct height of the cutting tool Simplify cutting tool setup and adjustment in a cutter head by stabilizing the cutting tool blade. Device for saving time when mounting and adjusting planer blades Made of high quality material, high strength and hardness, durable and practical Uses a micro-adjustable magnet and will help you install new planer blades in perfect alignment with precision Adopts strong magnets and can hold a blade up to 20 inches in length Unique design, no need to be held in place, convenient to use Planer blade calibrators, wooden box and user manual only, other accessories demo in the picture is not included. Specification: Material: Metal Color: Black Quantity: 1 Set Package contents: 2 x Planer Blade Sizers 1 x Wooden Box 1 x User Manual