Abstract: A clamp comprises first and second jaws that provide contact surfaces. The first jaw is elongated and has a longitudinal bore. The jaws are transversely hinged to maintain bore perpendicularity.

Abstract: An apparatus for locating at least one site on a first side of a workpiece in a predetermined relation with at least one aperture located on a second side of the workpiece includes: (a) at least one first locus-fixing structure; each respective first locus-fixing structure of the at least one first locus-fixing structure being configured for effecting the locating at least one respective site of the at least one site; (b) at least one second locus-fixing structure configured for cooperating with the at least one aperture to substantially fix the at least one second locus-fixing structure with respect to the workpiece in an installed orientation; and (c) a substantially rigid connecting member coupled with the at least one first locus-fixing structure and the at least one second locus-fixing structure. The connecting member situates the at least one first locus-fixing structure substantially in the predetermined relation in the installed orientation.

Abstract: An apparatus for locating at least one site on a first side of a workpiece in a predetermined relation with at least one aperture located on a second side of the workpiece includes: (a) at least one first locus-fixing structure; each respective first locus-fixing structure of the at least one first locus-fixing structure being configured for effecting the locating at least one respective site of the at least one site; (b) at least one second locus-fixing structure configured for cooperating with the at least one aperture to substantially fix the at least one second locus-fixing structure with respect to the workpiece in an installed orientation; and (c) a substantially rigid connecting member coupled with the at least one first locus-fixing structure and the at least one second locus-fixing structure. The connecting member situates the at least one first locus-fixing structure substantially in the predetermined relation in the installed orientation.

Abstract: A golf swing path training device for visually guiding a golfer through a proper swing path and properly align the golfer's stance includes an arm path member and a body path member. The arm path member and the body path member are preferably integrally formed such that a central portion of the arm path member is connected to a central portion of the body path member. The central portion of the arm path member is substantially straight, whereas the central portion of the body path member is substantially arcuate. During a swing, the arm path member visually directs the golfer to maintain a substantially straight or vertical arm path during the back swing. Conversely, the body path member, visually directs the golfer to maneuver his or her body in a rotating fashion throughout the golf swing.