Composite 3/8 in. Reversible Drill with Keyless ChuckAll the power, half the noise. The AIRCAT tool line has a substantially reduced level of noise while retaining more power and torque. Our tools have been tested and shown to operate at 82 86 dBa (decibels), far below the OSHA guidelines. This feature benefits not only the mechanic but also the overall business. The patented tuned exhaust muffler technology, in all the tools, allows discharged air to pass without developing back pressure, thus