Cordless Torque Screwdriver

torque screwdriver
A screwdriver with a device that measures the amount of torque being applied
A torque screwdriver is a quality control device used in production and manufacturing environments. All torque screwdrivers include a variable torque range, and all have a unique torque limiting clutch that disengages once the preset torque has been reached.

cordless
not having a cord; "cordless telephone"
A type of phone where the handset is not connected to a device by a cord, allowing the user to move about while placing or receiving a call.
(of an electrical appliance or telephone) Working without connection to a main supply or central unit
The term cordless literally means without a cord and is generally used to refer to electrical or electronic devices that are powered by a battery or battery pack and can operate without a power cord or cable attached to a fixed electricity supply such as an outlet, generator, or other