I have one that I bought at Hancocks and it works very well. I just don't have enough strength in my hands to do a decent sharpening however, so I have my son do it for me. I think being able to apply enough pressure is key. He regularly sharpens my 3 cutters. I might never had tried them, but I found the refills for the sharpener on a killer deal in clearance and bought the main sharpener with a 40% off coupon. I have bought some blades from Harbor Freight but have yet to use them. I'm waiting until my others don't sharpen up well enough.