Mower blade sharpener with four adapter screws to fit different angle grinders. Durable all-metal construction: body built from high-density aluminum alloy and 304 stainless steel (18-8), providing rust resistance and long-term reliability. Rust-proof design for use in garages, workshops, or outdoor sheds under all weather conditions. Easy setup: fix the tool on a workbench, lock in place, make a few adjustments, and begin sharpening with improved accuracy and efficiency. 15 to 45 degree adjustable angle: blade holder and grinding wheel angle can be set by hand using a thumb screw, enabling efficient sharpening of multiple blades. Practical applications - Home lawn care: quickly restore mower blade sharpness for cleaner, more even cuts. - Garage or shop: maintain blades for several mowers with consistent results. - Varied blades and grinders: adapt to different blade types and grinder models thanks to the four adapter screws and adjustable angle.