The Jonnesway 1/4” Super Duty Air Die Grinder, No. JAG-0925R, weighs 1.5 lbs, is 6.7" long and offers 22,000 rpm at 0.5hp. This Super Duty Die Grinder can be used for for weld braking, polishing, grinding and more. The tool offers several functions including: improved operating comfort with soft material and ergonomic handle design that help users avoid longtime usage tiredness and wrapping grip design of safety lever. The JAG-0925R includes an adjustable regulator for power/speed easy control, good balance and low vibration of spindle concentricity that contributes to increased working efficiency, according to the company.