28620 Features: -Flex shaft micromot 110/P with Collets.-2 ball bearings prevent bits from chattering.-Flexible shroud and core effortlessly transmit power without heating.-Anti-kink springs at the grip and drive end.-Use with Universal Holder UHV.-Collets sizes: 1.0, 1.5, 2.0, 2.4, 3.0 and 3.2mm. Dimensions: -Overall dimensions: 0.98" H x 20" W x 3.14" D, 0.6 lbs. Warranty: -Manufacturer provides 2 year limited warranty.