Just an FYI, vibrating blade is a double edge weapon. If you use it too much in total within your life span, the damage to yourself will be serious.
Check out vibration white finger, a common syndrome in the industrial world where vibrating equipment is used. It damages and destroys nerves, muscles, blood vessels, and connecting tissues. You will probably only be able to use that weapon for roughly 2-11 years before it sets in. Depending on how long it's used per day. After that it's retirement since your hands, and possibly arms too, will be fucked.