Review on Powerful Magnetic Hand Grinder - MGH4510 for Extra Strength Grinding by Calvin Reynolds

These are great for installing on a desk but nothing more. You can't hang it up vertically, which really disappointed me. But it's handy for keeping all my stuff together. I work in a confined space and I have this help. I bought another type with clip and I like it a lot more just because I can hang it vertically. But if you just want to sit on a table, give it a try.