An inventive stud removal and installation tool and method of use is disclosed. The inventive tool incorporates a body configured to hold a cage, cam sleeve and jaws. The cam sleeve is capable of being oriented to accomplish either stud removal or installation. The assembly of the tool is modular such that broken elements can be replaced without the need to replace the entirety of the tool.

A tool and kit for removal of a broken spark plug from a cylinder head may include first and/or second tools, and/or a supplemental tool. The first tool is designed to position a broken porcelain element into the spark plug tip so that a second tool may be utilized to engage the tip by threading into the tip and thereafter axially withdrawing the plug tip from the cylinder head into the hollow tubular member. The supplemental tool may be utilized to engage the plug wire contact of a plug with axially projecting, elastic cantilever segments and axially withdraw the attached plug contact into a hollow tubular member.

A compression screw driver system including a drive member having a shaft extending from a proximal end to a distal end. A drive selection member is positioned about the shaft and is axially moveable along the shaft between an engagement position and a disengaged position. A distal portion of the drive selection member defines a first engagement structure. A compression sleeve is positioned over the distal end of the shaft. The proximal end of the compression sleeve defines a second engagement structure which complements the first engagement structure and the distal end of the compression sleeve defines a contact surface. In the engagement position the first and second engagement structures are engaged and the compression sleeve rotates with the drive member and in the disengaged position the first and second engagement structures are disengaged and the compression sleeve remains stationary while the drive member rotates.