If the user who started the discussion has a possibility to loan mics from friends or something like that, I'd really recommend them to try different options (a dynamic microphone such as the mentioned SM-57, small and large diaphragm condensators either alone or in a stereo pair – AKG and Oktava have some nice options in various price ranges, and DPA produces high-quality small lapel mics that are easy to attach in various surfaces, contact mics on the surface of the tool, cheapo electret microphones etc). There certainly is no wrong and right in this matter! Hope you have nice moments with the project!
Some ideas:
- attach contact mics on the surface of the tool; try different positions near or far from the motor! If you make your own contact mics, try different ways of the art of tape-mummification, it reduces the annoying buzz of cheap contact mic elements and makes the mics easier to use.
- try DPA lapel mics (many times used to amplify the speech of the actors on stage) either attached to the sound source with two-sided scotch tape or a little bit further. Hairclips and Blue-Tack are great with small mics.
- record tools a little bit further away with a matched pair of small diaphragm condensator mics like you'd record the room sound of the drums. A great option to have in the mixing process
Hehe, I feel like a hobby crafts instructor with these silly ideas. Hope this helped!