About This Double-Duty Option: The optional 2B Combination Kit (PN: 199.3121 Basic Kit) includes a 2B Needle Scaler, 19 precision 3mm needles, a 3/4" wide chisel, and an Allen wrench for effortless conversion. Switch from Needle Scaler to Chisel Scaler in just seconds, enhancing your project efficiency and flexibility. High Performance: Equipped with 12 chisel-tipped needles and a blow rate of 3,800 blows per minute, delivering powerful performance for efficient surface treatment. Versatile Applications: Ideal for texturing concrete, cleaning and stress-relieving weld seams, and removing coatings, corrosion, and other accumulated materials. Robust Construction: Made with all-steel construction for durability, ensuring a long tool life and reduced maintenance needs – engineered with 20+ fewer parts than competitors. Low Air Consumption: Consumes 55% less air and operates efficiently with lower CFM, capable of running on smaller air compressors, maximizing productivity while minimizing energy costs. Improved Ergonomics: Available in both inline and pistol grip options, with a lightweight design for easy handling, along with a lever throttle for effortless power control Noise and Vibration Control: Operates at a noise level of 110.4 dB(a) and features vibration levels of 8.5 m/s², designed to minimize discomfort during extensive use. Enhanced Needle Longevity: Uses high-quality needles that last 10 times longer than standard options, offering fast removal and various tip shapes for diverse applications.