Abstract: The present invention relates generally to a clamp for achieving tight miter joints in wood casings or other materials comprising mitered ends. The clamp according to the present invention comprises a first handle and a second handle attached to each other to form a handle member and a first jaw and a second jaw attached to each other a clamping member. The handle member and clamping member are attached to each other in a manner that creates an over center cam mechanism that prevents the clamping member from opening unless the handle member is also opened.

Abstract: A clamp device is provided for defining a reference for a measurement comprising: a receiving tray defining a first reference guide and a second reference guide disposed at an acute angle to said first reference guide; a wing projecting from said receiving tray and defining a reference edge which aligns with the vertex of the angle between said first and second reference guides and is orthogonal to said first reference guide; a handle projecting from said receiving tray; a second handle pivotally connected with said first handle and having a forward portion; a clamp plate pivotally mounted to said forward portion; and a biasing member which biases the handles apart so that said pivoting clamp plate is urged toward said receiving tray.