2-mode Rotary Microtome, Brand Name : Craftk, Packaging Type : White

this machine can be operated with 2 modes: panel control mode, and 2nd  hand wheel control mode. rotate the 2nd smaller hand wheel (which controls the servo motor in the machine) at the left side of the instrument clockwise or counter-clockwise, to enable fast movement of the specimen feed or retraction. It imitates a fully manual operating machine. This function meets the requirements of skillful operators, and improving the work efficiency greatly.