Kawasaki Variable Speed 4 1/2 Inch Angle Grinder (5.8 Amp) Model 840370 Officially licensed by Kawasaki Made using the highest quality standards Tested for durability 120 Volt/60 HZ with a powerful 5.8 amp motor No load speed; 1,000-11,000 RPM Disc size: 4-1/2" Spindle lock and spindle thread depth of 5/8" 2 Side handle positions