Customer Reviews for VEVOR Lawn Mower Blade Sharpener and Balancer, 15° - 45° Adjustable Lawnmower Blade Sharpening Tool with 4 Adapter Pins, Ball Bearings & 25mm Enlarged Handle, Compatible with Most Angle Grinders

The base unit mount to the table is very good. The angle adjustment is lacking, only using a small thumbscrew to hold it. It is wobbly and prone to backing off with repeated sharpening. The blade mount opening is insufficient for commercial blades as it is JUST barely big enough to hold them in place with the retaining screws fully backed off. The arm mechanism would benefit from strengthening, it has too much flex when grinding into severely dulled blades. The spacer guide needs a more secure mechanism than a nut, the nut wiggles loose and then you're liable to hit the arm with the grinding wheel. The overall design is adequate but has a lot of room for what I can only imagine would be cheap manufacturing upgrades.