Milwaukee 3670 22 Angle Grinder, 6 in_4 1 2 in Wheel Dia, Brushless Motor, (2) 8.0 Ah, 18V DC, Std Head, M18 FUEL™ 4178IRUV5 toroidal balanced chokes toroidal balanced chokes 2 psi Gauge Sensor Material 316 Stainless Steel Socket Material 316L Stainless Steel Pressure Range 0 to 30 psi Case Material Phenolic Process Connection 1 2 in NPT Male Standards ASME Lock Off Switch Guard Adjustment Toolless Adjustable Head Type Standard Head Battery Series M18(TM) REDLITHIUM(TM) Number of Batteries Included 2 Anti Restart Technology Yes Charger Included Yes Brake Type Electronic Tether Style Tether Ready Series M18 FUEL(TM) Lock Off Switch Yes Grip Style Barrel Grip Spindle Lock Yes Housing Material Glass Filled Nylon • Overload Protection to Maximize Motor Life • Anti Vibration Side Handle for Reduced User Fatigue • Streamlined Handle Grip Size for Increased Control and Ease Of Comfort • Paddle Switch Design for Increased Comfort and Ease Of Use when Operating in Various Positions