Repetitive capping of test tubes can cause soreness and fatigue of the hands and fingers. With this test tube capper the user can use their entire arm for leverage, reducing finger soreness and hand stress. A vinyl covered handhold fits comfortably in the palm of the hand while a polypropylene tip presses down on the cap to securely position it within the test tube. The capper is designed for use with recessed centre test tube caps. Capping can be performed on glass or plastic test tubes.