12V Motor 0.5-2.5mm Collets Small Electric Drill Bit Micro Grinder Twist Drill Chuck DIY Set

The only good part of this kit is the motor, but you can buy motors like this all day long for less than $5. The collet adapter, unfortunately, is totally useless because the hole for the motor shaft appears to have been drilled off center and at an angle, and either fault - much less both together - renders this all but unusable as a rotary tool. Maybe a wire wheel wouldn't mind so much, but you can forget using drill bits or cutoff discs.