Magnetic knife alignment and calibration tool for planer blades - Easy magnetic mounting on the cutterhead: Each tool frame holds firmly with magnets to enable stable attachment to the cutting head. Simply place the gauge over the cutterhead and set the correct blade height with precision. - Adjustable calibrator for all planer blade types: A versatile tool for woodworking tools that fits all brands and models of surface planers, jointers, and combination planers/thicknessers. Designed for 1/8 inch knife heads to enable precise leveling of blades. - Simplifies setup and alignment in one step: Stabilizes the cutting tool blade as you set and adjust the knife in a single cutterhead, saving time during blade mounting and adjustment. - Durable construction with strong magnetic guidance: Made from high quality material with high strength and hardness for durability. Uses adjustable mini-magnets and high-performance magnets to help install new planer blades in perfect alignment, holding the blade up to a length of 20 inches. - Practical use scenarios - Replacing blades on a planer or thicknesser: use the tool to verify and set equal blade heights across all knife heads before final tightening. - Installing new or resurfaced blades: hold and align knives with the magnets to ensure consistent positioning during mounting. - Servicing jointers with multiple knives: align 1/8 inch knife heads to maintain even cutting depth and parallelism for a clean, flat surface. - Key attributes at a glance - Function: magnetic alignment and height calibration for planer knives - Compatibility: works with all brands/models of surface planers, jointers, and combination planers/thicknessers - Knife head size: 1/8 inch - Material and build: high quality, strong and hardwearing - Magnet system: adjustable mini-magnets and high-performance magnets - Blade length support: up to 20 inches