Abstract: A side operated clamp for a resharpenable insert tool holder includes a clamping member movable into a converging recess on the tool holder body to clamp the tool insert against a shelf on the tool holder body. An actuator is movable transversely in a transverse slot extending across the tool holder. A threaded member is rotated to cause the actuator to move. The actuator has a projecting portion fitting into a dovetail keyway on the clamping member. The keyway is inclined to the transverse axis to cause clamping/unclamping movement when the actuator moves in the transverse slot.

Abstract: A form tool for a rotating workpiece comprising a removable resharpenable tool insert, a tool holder with a recess receiving the insert, and an adjustable tool insert support which will raise and relocate the insert in the tool holder recess after each resharpening. Preferably the tool insert support comprises one or more wedge-shaped members drawn into the recess with bolts, serving to clamp the resharpenable insert against the rear wall and top shelf of the recess. The resharpenable tool insert has a top planar surface adapted to be removed during resharpening, a rear surface and a profiled front form surface parallel to the rear surface. The front form surface intersects the top surface at a first included angle which is the complement of the sum of a preselected top rake angle "R" and a preselected front clearance angle "C".