Plane Camber Jig for use with the Triton Whetstone Sharpener TWSS10. Especially good for scrub and jack plane irons. Puts an even, slight radius onto a hand plane iron. Camber for improved shearing action. Plane Camber Jig for use with the Triton Whetstone Sharpener TWSS10. Especially good for scrub and jack plane irons. Puts an even, slight radius onto a hand plane iron. Camber for improved shearing action.