Milwaukee M18 FUEL 1/2" High Torque Impact Wrench (2767-20) vs Milwaukee M18 SURGE Hydraulic Driver (Gen 2 / 2761)

The FUEL delivers 1,000 ft-lbs of fastening torque and 1,400 ft-lbs of breakaway torque. The SURGE is a 1/4" hex driver built for screws, not a wrench — it's not even in the same torque category. Trying to break loose a rusted lug nut with the SURGE is like trying to open a jar with a butter knife. Conversely, using the FUEL to drive finish screws is like using a sledgehammer to hang a picture frame.

Traditional impact drivers — including the FUEL — use a mechanical hammer-and-anvil mechanism that produces that signature loud clacking sound. The SURGE replaces that with a hydraulic oil-pulse mechanism that is dramatically quieter. Over a 30-year career driving screws eight hours a day, that difference is the difference between keeping your hearing and not. This isn't a minor comfort feature — it's a legitimate occupational health advantage that no other tool in this category offers.

The FUEL uses a 1/2" square drive, which means it accepts the full range of impact sockets for automotive and heavy-duty work. The SURGE uses a 1/4" hex collet, which means it's limited to hex-shank screwdriver bits. You cannot put a socket on the SURGE and go after a lug nut — it's physically incompatible with that kind of work. This single spec difference defines the entire use case for each tool.

The SURGE runs $100–$169, roughly half the cost of the FUEL at $300–$459 tool-only. But buying the cheaper one for the wrong job costs you more in the end — stripped fasteners, damaged materials, or a tool that simply can't break loose what you need it to. The FUEL's price is justified if you're in trades; the SURGE's lower price is a bonus for residential work where you'd never need that extra torque anyway.