Amazing tool for every professional luthier. Length 265 mm, weight only 0,74 kg, material hardness 44-48HRc. World lightest fret mounting pliers made from high endurance Chrome-Vanadium steel. Fully adjustable 5 opening positions, plus fine adjustment with grip wheel. Soft and precise movements of the parts allows effective repeated pressure. Fast and easy replacement of cauls, no screw or allen key needed- simple press in and pull out. One hand movement release action, not any force required.Delivered with basic set of cauls: FLAT, 7.1/4'', 12'',16''