The DeWalt DCF860 won because it is, measurably, the fastest impact driver you can buy. Project Farm clocked it at 4.95 seconds average on 5/16" x 5" lag bolts, a full 1.3 seconds ahead of the Hercules and half a second ahead of Milwaukee's Gen 4. On standard #10 screws, it averaged 1.41 seconds. No other tool in the 25-video dataset beat both numbers.
Philly Fixed built a custom racetrack rig with ball-bearing rails to eliminate human variance from medium-torque tests. The DCF860 led that test too, pulling ahead of Flex and Milwaukee by about half a second on 3/8" x 6" lags driven into dense PVC decking. That consistency across three independent test methodologies (Project Farm's dyno, Philly Fixed's racetrack, and Pro Tool Reviews' fastening battery) is what separates the DCF860 from tools that win one test and lose another.
The nine integrated LEDs are a genuine field advantage. Tools & Stuff noted they're vastly brighter than the three-LED configuration on older DeWalt models, and Project Farm highlighted the 20-minute delayed-off work light feature. If you've ever tried to drive a lag bolt inside a joist bay at 5 PM in November, you understand.
At $140 for the bare tool, it sits at the entry point of the mainstream premium tier. The Milwaukee 2953 costs $39 more. The Flex is $19 more with half the reliability track record. For a tool that won more speed tests than any competitor in our dataset, $140 is the right price point for serious buyers.
What It Won't Do
The DCF860 is a heavy, loud tool and it does not pretend otherwise. At 2.8 lbs bare, it's 200 grams heavier than the DCF887 it replaced. Tools & Stuff weighed it against the full lineup and it came in second-heaviest, beaten only by the Flex. Overhead joist work with this thing will tire you out faster than a Milwaukee 2953 at 2.24 lbs. Noise is the bigger issue. Project Farm measured 96.1 dB driving screws, and Tools & Stuff recorded 83 dB at the user's ear just outside. Driving lag bolts, it hits 111 dB. You need earmuffs. The collet problem is less common but worth knowing: under extreme torque (12" lag screws), bits can jam so tightly that pliers are required to extract them. Tools & Stuff reproduced this multiple times.
The Hercules HCB81B from Harbor Freight costs $70 as a bare tool. A full kit with a 5Ah battery and charger runs $98. That's less than what Milwaukee charges for the bare tool alone.
The price would be irrelevant if the tool couldn't keep up. It can. Philly Fixed ran it through their standard deck screw test (three 4" screws into OSB) and the Hercules finished within 0.2 seconds of premium flagships costing $140 to $180. That margin falls within measurement noise. On everyday fastening, the Hercules is functionally tied with tools that cost twice as much.
Project Farm's static torque test confirmed the parity: 1,882 in-lbs from the Hercules versus 1,886 from the DCF860. Four in-lbs of difference. The Hercules also held its own in Project Farm's lag bolt speed tests, finishing mid-pack and "running circles around" other budget brands.
The 5-year warranty adds serious long-term value. Philly Fixed specifically called it out: for a sub-$100 kit, that warranty coverage makes the purchase decision nearly risk-free. If it breaks in year three, Harbor Freight replaces it.
What It Won't Do
The Hercules protects itself aggressively. Philly Fixed found the electronic cutoff kicks in at 350-400 ft-lbs of nut-busting force, shutting the tool down entirely. Premium tools push past 450 ft-lbs before timing out. If you regularly bust rusted bolts or drive massive structural fasteners, the Hercules will refuse and you'll reach for something else. Comfort is the other real weakness. Project Farm wrapped tool handles in slime to visualize vibration transfer, and the Hercules jiggled noticeably more than Milwaukee or Makita. At 99.4 dB under load, it's also louder than the DCF860 by 3.3 dB. For all-day use, that vibration and noise gap adds up in hand fatigue and headache potential.
Who Should Buy Which
DeWalt DCF860
The fastest impact driver money can buy
- You build decks, frame walls, or drive lag bolts regularly and need the fastest tool available
- You're already on the DeWalt 20V MAX platform and want their flagship impact driver
- You prioritize raw speed and torque over compactness and low weight
- You work outdoors where noise isn't a concern and always wear hearing protection anyway
- You want the tool that won the most independent speed tests across our 25-video dataset
Hercules 20V Brushless
Pro-level speed for a fifth of the price
- You handle standard deck screws, furniture assembly, and general renovation without heavy structural work
- You want a full kit (tool, 5Ah battery, charger) for under $100
- You're not locked into any battery ecosystem and want maximum performance per dollar
- A 5-year warranty matters to you, especially on a tool this affordable
- You can tolerate rougher vibration and higher noise in exchange for saving $70-110 over premium alternatives