Chicago Pneumatic introduces their CP7830Q and CP7830HQ 3/8" and 1/2" air ratchets. According to the company, the ratchets adjustable noise control feature allows them to run at a quieter 79 decibels. Additional features include a TriSpring adjustable ratchet head, a lighterweight design, and the ability to generate up to 90 PSI of working torque at a speed of 190 RPM.