gabujau not tested**** cordless rotary tool kit mini, 7.4v 12-speed power usb rechargeable, for 3d printer sanding, jewelry making, wood carving, polishing, drilling diy crafts with 51 accessories blue is up for auction in Tools & Home Improvement. The current bid is $5.00, 76% below the $20.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.