This rebar tying tool is our largest automatic rebar tying tool, sized to tie up to two #8 rebar segments. This automatic tying machine is still lightweight, and has a compact, easy-to-hold, glove-friendly grip. An 18-volt lithium-ion quick-charge battery drives a brush less twisting motor for extreme battery life Over 4000 per charge Two batteries included with tool, with charger 4 Wire spools included to get started