This WECHEER rotary detail carver has more guts than the #1, #2 and #3 blue rotary carvers. Even though it has 23,000 RPMs compared to the others at 13,000, it still is considered a light-duty detailing machine. You don't want to put in a carbide burr of some sort and start to hog off wood. It is not designed for that. It is designed for detailing, sanding or texturing your project. Since it is operating up to 23,000 RPMs, we chose to equip it with 2 collets (3/32" & 1/8") instead of a finger chuck.