Taylor Air Scribe/Mini Chisel Kit. Kit includes 3 chisels and 1 scribe tip. The T-9616 is designed for durability and comfort. Hex shank chisels vibrate at 13,500 blows per minute. This tool comes complete with an 8 ft. high quality hose and filter. The filter element strains out foreign particles that might impair tool operations and can be removed and cleaned. Low air consumption and lightweight make this a must for writing on materials such as glass, steel, wood, plastic, or any type of metal. Tool converts to light scaler or hammer for driving pins, preening, deburring, or trimming. Writes on materials up to 64RC hardness. Simple mechanism for trouble free use. Twist throttle with graduation for accurate speed control. Convenient carrying case included.