Wolfcraft 4522 Tec Mobil Drill Stand - Portable and Adjustable Drill Press Stand for Precise Drilling | Perfect for Woodworking, Metalworking, and DIY Projects

None of the reviews I saw had the actual dimension of the collar that holds the drill motor in place, so I thought I'd add them. The collar depth should be no more than one inch, or the chuck will probably hit the clamp. The diameter of the collar should be between 1 9/16 and 1 3/4 inch or you'll have to drill or shim the clamp that holds the motor. I used a Makita HP 1640 corded drill, which works fine. I doubt any of the cordless drills will work, although I saw a Milwaukee hammer drill that might.The stand works fine for the price - my drill motor is heavy but the springs worked fine to hold it up while I positioned the bit. It isn't the most rigid platform, but I didn't expect that for this price. If you want high precision, go to the drill press. At the bottom of the range, the chuck on my drill hits the plastic dust collection hood (which works pretty well), but no big deal. Overall, happy with the purchase, and really glad it fit one of my drill motors.