Ryobi ONE+ 18V 2.0 Ah Li-ion Brushed Cordless Impact driver 1 battery R18ID2-120S5. The Ryobi R18ID2-120S5 is a high-powered impact driver designed to fasten & loosen long screws or large bolts quickly. It’s capable of delivering very high amounts of torque (200 Nm) whilst causing very little twist or reactionary feedback through its handle perfect for decking fencing & roofing