I recently purchased a NSK micromotor and decided I would go with this hammer handpiece over the Foredom one. I don't know if I'm using it wrong, but it really doesn't seem to have a lot of force behind the hammering. I've watched a lot of videos of hammer setting with a foredom hammer handpiece and the bezels move quite effortlessly. I'm spending up to an hour getting a silver bezel to push over, which doesn't seem right.