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Not sure which DeWalt impact wrench to choose? Learn the difference between 3/8", 1/2" and 3/4" drive sizes and which type fits automotive or heavy fastening work.
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DeWalt impact wrenches and cordless ratchets loosen and tighten nuts and bolts quickly on vehicles, machinery, steel structures and equipment. The range covers 12V and 20V MAX impact wrenches in 3/8" and 1/2" drive, from compact Atomic models to high-torque tools, plus 12V and 20V cordless ratchet wrenches.
How to choose a DeWalt impact wrench
- Drive size: 3/8" drive suits smaller fasteners and tight engine bays. 1/2" drive is the common choice for wheel nuts and structural bolts.
- Torque: Compact models such as the DCF911 (338Nm) and DCF921 (406Nm) suit general work. The DCF892 (812Nm) and DCF900 (1898Nm) are for large, stubborn bolts.
- Size and weight: Compact Atomic models fit in tight spaces and are easier to use overhead.
- Ratchet wrench: The DCF503 (12V, 3/8") and DCF512 (20V, 1/2") run nuts down quickly where a full impact wrench will not fit.
Popular DeWalt impact wrenches at KHM Megatools
| Model | Type | Good for |
|---|---|---|
| DCF902D2 | 12V, 3/8" drive | Light automotive and maintenance work |
| DCF911N / DCF921N | 20V Atomic, 1/2" | Compact work on cars and machinery |
| DCF880N / DCF922D2 / DCF922N | 20V, 1/2" | General shop and site bolting |
| DCF892N | 20V, 1/2", 812Nm | Wheel nuts and heavier bolts |
| DCF899HP2 / DCF900N / DCF964NT | 20V high torque, brushless | Large structural and equipment bolts |
| DCF503N / DCF503EN / DCF512N | 12V / 20V ratchet wrench | Running nuts in tight spaces |
Impact wrench or impact driver?
An impact wrench has a square drive for sockets and is made for nuts and bolts. An impact driver has a 1/4" hex chuck for screws and bits. Use impact-rated sockets such as those in DeWalt sockets and wrenches.
Bare tools need DeWalt batteries; see DeWalt batteries and chargers.
All products from KHM Megatools are genuine and covered by the manufacturer's warranty where applicable.
Need help choosing the right Dewalt tools?
20V MAX or 60V FLEXVOLT? Compare DeWalt cordless grinder models, wheel sizes, battery systems, and recommended applications in this Philippines 2026 buyer's guide.
How can one DeWalt battery work with both 20V MAX and 60V MAX tools? This guide explains FLEXVOLT voltage switching, compatibility, battery capacities, and which setup may suit your work.
Not sure which DeWalt 20V MAX battery to buy? Compare battery capacities, POWERSTACK, XR POWERPACK, runtime, and recommended uses to find the right battery for your tools.
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