Rotor machine Dragonhawk Mast FLEXDragonhawk Mast FLEX rotary machine is a quiet, compact machine with minimal vibration. It has an ergonomic design and rests comfortably in the hand. It can work with all standard power supplies. The machine is compatible with its "native" MAST cartridges as well as with KWADRON cartridges and cartridges of similar configurations. Features Purpose: universal Body: aircraft aluminum Needle stroke: 3,5 mm Weight: 134 gr Handle diameter: 30 mm Length: 9.