Tool only. 20v Max (Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.) Lithium Ion. Battery and charger sold separately. Guarantee tough. Specifications: No load speed: 8000 rpm. Spindle Thread: 5/8 Inches - 11 (15.9 mm). Spindle Lock: Yes. Tool Weight (Tool only): 4.0 lbs (1.8 kg). Includes: DCG412 Grinding tool, wrench, 4.5 Inches (115 mm) type 27 guard, 2- position side handle and 4.5 inches (115 mm) X 1/4 Inches (6 mm) metal grinding wheel. US & Canada only. Yellow & Black. NOM. ANCE.