cap is removed from a container an intermediate length 25 of the tool 10 interconnects the wrench portion 11 and a puncture and cut portion 12 the intermediate length 25 is sufficiently long that a user can grasp it as a handle while using either the wrench portion 11 or the puncture and cut portion 12 of the tool the puncture and cut portion 12 of tool 10 comprises a blade 30 projecting from intermediate length 25 shoulder 31 is formed at the junction of the intermediate length 25 and the blade blade 30 has a back edge 32 curved from the intermediate length to a penetrating point 33 a forward edge 34 has a curved notch 35 and both the forward edge and the curved notch are made semi sharp so they will cut seal material initially punctured by the point in use the shoulder 31 rests on the rim of the container opening and the tool is pulled around the rim the sharpened edge of the notch is angled such that the cut material is directed upwardly and inwardly away from the container edge such that it can be easily grasped for removal the intermediate length 25 of the tool 10 serves as a handle during puncturing and cutting of the protective seal in the embodiment of the invention shown in fig3.