A workholding clamp for securing a workpiece to a work surface comprised of a fixed body secured to the work surface and having a first inclined surface; a sliding jaw having a second inclined surface residing against and parallel to the first inclined surface, a clamp face and at least one obround opening; and at least one clamping fastener residing within the at least one obround opening and being tightened to cause the second inclined surface to slide against the first inclined surface. A workholding pivot clamp for securing a workpiece to a work surface, and a work stop for reliably locating a workpiece relative to a work surface are also described.

A clamp to retain a block of material on a machining table including a body having a first face, a first front face oriented toward the machining table and the block of material when in use, a nose projecting relative to the first front face having a second front face parallel to the first front face, first and second edges connecting the first and second front faces, and at least one internally threaded hole opening at least partly at the level of the second front face with an axis forming a non-zero angle with the first face and the second front face, at least one grub screw screwed into the internally threaded hole having a pointed free end configured to penetrate into the block of material when in use when screwing in the grub screw, and a connecting system to demountably connect the clamp to the machining table.

A swing clamp includes a body with a first end and second end. The body defines a bore through the first end and a cavity at the second end. The bore is in communication with the cavity. A plunger is slidably and rotatably held in the body bore. A lever is pivotally connected to the second end. A link arm pivotally connects between the plunger and the lever. A housing includes an attachment portion and a cylindrical portion. The cylindrical portion includes a bore to enable passage of the plunger. A groove is formed in an inner surface of the bore. The groove guides a pin coupled with the plunger. A clamp finger is secured on the end of the plunger. The clamp finger rotates as the plunger is moved in the bore.

A workholding clamp for securing a workpiece to a work surface comprised of a fixed body secured to the work surface and having a first inclined surface; a sliding jaw having a second inclined surface residing against and parallel to the first inclined surface, a clamp face and at least one obround opening; and at least one clamping fastener residing within the at least one obround opening and being tightened to cause the second inclined surface to slide against the first inclined surface. A workholding pivot clamp for securing a workpiece to a work surface, and a work stop for reliably locating a workpiece relative to a work surface are also described.

A clamp to retain a block of material on a machining table including a body having a first face, a first front face oriented toward the machining table and the block of material when in use, a nose projecting relative to the first front face having a second front face parallel to the first front face, first and second edges connecting the first and second front faces, and at least one internally threaded hole opening at least partly at the level of the second front face with an axis forming a non-zero angle with the first face and the second front face, at least one grub screw screwed into the internally threaded hole having a pointed free end configured to penetrate into the block of material when in use when screwing in the grub screw, and a connecting system to demountably connect the clamp to the machining table.

An adjustable clamp for the retention of a vice or work piece onto a slotted worktable. The clamp has a raised rear foot that both spans the standard width of a slot in a slotted worktable regardless of the angle the clamp is secured to the worktable, and generates an increased gripping force at both contact points of the clamp. Its nose accommodates a cylindrical pin recess to accommodate a cylindrical pin to allow the vice to clamp to a vice with a raised peripheral lip. The 30 degree beveled front edge allows the clamp a substantial planar contact surface with the vice or work piece, enhancing stability.

A swing clamp includes a body with a first end and second end. The body defines a bore through the first end and a cavity at the second end. The bore is in communication with the cavity. A plunger is slidably and rotatably held in the body bore. A lever is pivotally connected to the second end. A link arm pivotally connects between the plunger and the lever. A housing includes an attachment portion and a cylindrical portion. The cylindrical portion includes a bore to enable passage of the plunger. A groove is formed in an inner surface of the bore. The groove guides a pin coupled with the plunger. A clamp finger is secured on the end of the plunger. The clamp finger rotates as the plunger is moved in the bore.

An adjustable clamp for the retention of a vice or work piece onto a slotted worktable. The clamp has a raised rear foot that both spans the standard width of a slot in a slotted worktable regardless of the angle the clamp is secured to the worktable, and generates an increased gripping force at both contact points of the clamp. Its nose accommodates a cylindrical pin recess to accommodate a cylindrical pin to allow the vice to clamp to a vice with a raised peripheral lip. The 30 degree beveled front edge allows the clamp a substantial planar contact surface with the vice or work piece, enhancing stability.

A clamp head including an arched body having upper and lower faces, and opposing unequal length arms. The body further has a through aperture for a bolt or like threaded fastener extending between the upper and lower faces, the through aperture tapering outwardly through the body in the direction of the lower face. The arms comprise a reaction arm having at its distal end a curved reaction face and a clamping arm having at its distal end a curved clamping face. The curved reaction face has a first edge that is proximal to the reaction face and a second edge that is distal to the reaction face, wherein the radius of curvature of the reaction face increases in the direction of the second edge.