I use this product on my cordless drill - I help hold the attachment in place - as soon as I got it I went to work. It actually worked as advertised (video). He liked it and asked where I got it from. I told him Revane - he wanted mine, but. I should have apologized - you should get your own. If you live here in the Philippines, you are lucky if you can find such products. I recommend this to anyone working in the automotive industry or with sheet metal.