Attributes . Cuts with no material lossin the kerf as with nibblers, Replaceable blades offer 4 cutting edges for maximum precision, Built-in thickness gauge for operator convenience, Highly visible sight line for precise following of patterns, Scrap Guide protects tool and operator from sheared material, Low noise level - Just 81 dB, Lock-On Button enables easy continuous operation, Ergonomic Soft Rubber Grip design for vibration absorption and comfortable operation . Names