SPECIFICATIONS: Battery System: MX Fuel™ Battery Type: Lithium Ion Motor Speed: Variable 790/1550 rpm Spindle Size: 1-¼"-7 and 5/8"-11 adapter Max Bit Capacity: 6" Water Connection with Hose Adapter Dimensions (L x W x H): 22.5 x 4.8 x 9.3 in Weight: 21.6 lbs