Abstract: A clamping mechanism is provided for securing a workpiece proximate a power tool on a work surface of the type having a support surface defined thereon and extending generally orthogonal thereto. The clamping mechanism applies a force to the workpiece to secure the workpiece between the clamping mechanism and the support surface. The force applied to the workpiece has a component directed substantially perpendicular to the support surface, and an additional component which is directed substantially parallel to the support surface in a direction away from the power tool to resist pulling forces which are applied by the power tool to the workpiece. Further, in a preferred embodiment of the invention, the clamping mechanism is oriented proximate a work head of the power tool without entering an effective work area of the power tool.

Abstract: A workpiece stop mechanism (20, 50) for use with a fence (50, 60), is disclosed. The stop mechanism (20) includes a body member defining an opening for enabling the body member to be inserted on and removed from the fence (50) and for sliding on the fence (50). The body member has a view plate (24) that is cooperatively connected for viewing a measuring device (57). A gate member (30) and eccentric (31) provide for pivoting the gate member between an open and closed position wherein when in the closed position the gate (30) is engaged with the fence (50) and thereby securing the gate (50) and body to the fence (50). The fence (50) includes a body member (51) adapted to be secured to a work surface and an upright member (55) cooperatively connected to the bottom member (51). An angled extension member (56) is cooperatively connected to a top portion (55c) at an angle from approximately 30.degree. to 60.degree. and preferably at an angle of approximately 45.degree..

Abstract: A versatile extension assembly (20) that is rapidly and simply attached to a power tool apparatus (25) is disclosed. Unique coupler apparatus (50, 54) and tightening means (60) provide simple one-step alignment and mounting of an elongate extension member (40) to the power tool apparatus, for rigid fastening and automatic self-alignment about three orthogonal axes. The extension assembly includes a collapsible bi-pod leg (80) and a vertical guide (45) attached to the extension member, as well as one or more measurement rules (46). The extension assembly is particularly suitable for production in kit form, and can include a measuring clamp (95) attachable to the vertical guide, a folding stand (34) for the power tool assembly and a mounting base plate (30).