The Jet 4", 5", and 7" Industrial Angle Grinders feature long lasting and powerful motors to meet continuous work demands. The 4” and 5” have a 1.2hp motor and the 7” has a 1.8hp motor. The grinders offers precision beveled gears that produce lower vibration and a longer operating life, a refined spindle lock design for easy wheel changes, and a lock off safety lever to protect against accidental startup. It also has an adjustable wheel safety guard to control spark direction and an adjustable exhaust to direct air away from the operator. The 4" (JAT-464) has a free speed of 13,000 rpm, the 5" (JAT-465) has 12,000 rpm, and the 7" (JAT-467) has 7,600 rpm.