The Astro ADN38 XL rivet nut drill adapter kit - 3/8" capacity is made from a single CNC machined piece of aluminum billet and features Japanese bearings. Easily convert a cordless, pneumatic or corded drill into a power rivet nut setters. This kit includes 8 mandrels and nosepieces in the following SAE and metric sizes: 10-24, 1/4-20, 5/16-18, 3/8-16 and M5, M6, M8 & M10. For aluminum and steel rivets nuts use a 12V and up corded drill or an 18V and up for larger sizes like M10 & 3/8” and for stainless rivet nuts (all drills must feature torque limited clutch.)