The Airbase by EMAX Heavy Duty Air Angle Grinder, 4 in. (Model: EATAG40S1P) is the perfect tool for tackling all types of jobs at home, in the shop, at the garage, or even the job site. EMAX's Heavy Duty Air Angle Grinder has 11,000 rpm, offering the performance to conquer heavy duty cutting and grinding jobs including rust removal, weld preparation, de-burring, and smoothing on all metals. A three finger throttle trigger allows jobs to progress with ease and a built in "lock-off" trigger prevents accidents. All EMAX air tools offer the industry's best product support with a limited lifetime warranty. EMAX is owned and operated in America and makes industrial grade tools for the household project focusing on quality, integrity, and service.