How many inch-pounds of torque does an impact driver have?

Most full-size 18V or 20V max cordless impact drivers are rated between 1,500 and 2,000 inch-pounds, which is roughly 125 to 165 foot-pounds. Compact and sub-compact models typically fall between 900 and 1,400 inch-pounds, and high-torque flagship drivers claim above 2,000. Twelve-volt drivers generally land between 800 and 1,300. Manufacturers state maximum fastening torque, which is a peak figure measured under specific conditions rather than a continuous output, so treat it as a comparison number within a brand rather than an absolute.

How much torque do you actually need in an impact driver?

For almost all home and remodeling work, anything from about 1,200 inch-pounds upward is enough. Driving 3 inch deck screws, lag screws up to about 3/8 inch, cabinet and framing screws, and self-tapping fasteners are all comfortably inside that range. The point of diminishing returns comes quickly: past roughly 1,800 inch-pounds you are mostly buying speed on large fasteners rather than the ability to do jobs you otherwise could not. Control, size, weight and battery platform matter more day to day than the last 300 inch-pounds.

Is impact driver torque the same as drill torque?

No, and comparing the numbers directly is misleading. A drill delivers continuous rotational torque, which your wrist has to resist, so a 600 inch-pound drill can twist hard enough to hurt you. An impact driver delivers torque in rapid rotational hammer blows, so almost none of the reaction is transmitted to your hand, which is why a 1,800 inch-pound impact driver is easier to hold than a 600 inch-pound drill. The two figures describe different mechanisms and a higher impact rating does not mean the tool bores holes better.

Can an impact driver be too powerful?

It can be for the fastener. High torque drivers routinely snap the heads off small screws, strip the threads in softwood, cam out and chew a screw recess, and over-drive fasteners flush into and through thin sheet material. The answer is control rather than less tool: use the lowest speed and torque mode the driver has, choose the right bit and seat it fully, and ease off the trigger as the head approaches the surface. For delicate work such as small brass screws or electronics, a drill driver with a clutch is the right tool, not an impact driver.

Does an impact wrench have more torque than an impact driver?

Considerably. Impact wrenches are built for bolts and nuts and commonly range from around 250 foot-pounds on a compact 3/8 inch model to well over 1,000 foot-pounds on a high-torque 1/2 inch one, which is several times a typical impact driver. They also use a square anvil for sockets rather than a 1/4 inch hex chuck for bits. If you are removing lug nuts or structural bolts, you want an impact wrench; if you are driving screws, an impact driver is the right tool and far easier to control.

How Much Torque Does an Impact Driver Have?

Written & researched by Priya Anand DIY & Tools Editor

Updated October 2026

Overhead view of a person drilling into a timber board on a workbench, sawdust in the air, in soft early-morning light

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Most full-size 18V or 20V max impact drivers are rated 1,500 to 2,000 inch-pounds of maximum fastening torque, which is about 125 to 165 foot-pounds. Compact models fall between roughly 900 and 1,400 in-lb, 12V drivers between 800 and 1,300, and high-torque flagships claim above 2,000. That figure is a peak measured under manufacturer-specific conditions, not a continuous output, so it compares tools rather than describing what you will feel. For nearly all home and remodel work, anything from about 1,200 in-lb up is enough. Specifications as of 2026.

Typical ratings by class

Class	Max torque	Foot-pounds	Suits
12V sub-compact	800–1,300 in-lb	65–110 ft-lb	Cabinets, trim, electrical boxes, overhead work
18V/20V compact	900–1,500 in-lb	75–125 ft-lb	General DIY, most home projects
18V/20V full size	1,500–2,000 in-lb	125–165 ft-lb	Decking, framing, lag screws — the mainstream
High torque flagship	2,000–2,300 in-lb	165–190 ft-lb	Heavy lags, ledger boards, production work
Impact wrench, 1/2 in	Often 500–1,400 ft-lb	—	Bolts, lug nuts — a different tool

Wide view of a person drilling into a timber board on a workbench, sawdust in the air, in bright midday sun

What the number actually means

Impact drivers do not apply steady torque. Below a resistance threshold they spin like a drill; once the fastener resists, an internal hammer and anvil begin striking rotationally, typically 3,000 to 4,000 impacts per minute, delivering torque in pulses. The rated figure is the peak of those pulses under a manufacturer test condition, and there is no universal standard binding every brand to the same method. That is why the numbers are useful for ranking tools within a brand and less reliable across brands, and why a 1,800 in-lb impact driver feels nothing like a 600 in-lb drill in your hand: the impacts absorb the reaction that would otherwise twist your wrist. See impact driver vs drill driver for what that means in use.

Three-quarter view of a person drilling into a timber board on a workbench, sawdust in the air, in warm evening lamplight

How much you need, by job

Cabinet screws, trim, electrical boxes: 800 to 1,200 in-lb, and a light compact tool is better than a powerful one here
3 inch deck screws into softwood: 1,200 to 1,500 in-lb
Structural screws and 1/4 to 3/8 inch lags: 1,500 to 1,800 in-lb
1/2 inch lags and long ledger fasteners: 1,800 in-lb and up, or step to an impact wrench
Lug nuts and suspension bolts: an impact wrench, not a driver — see using an impact driver on lug nuts

Past about 1,800 in-lb, extra torque mostly buys speed on large fasteners rather than new capability. Weight, length, trigger control, work light quality and which battery platform you already own all matter more in daily use than the top of the torque range. So does hearing protection: an impact driver is loud, and NIOSH treats noise as hazardous from 85 dBA upward.

Over-the-shoulder view of a person drilling into a timber board on a workbench, sawdust in the air, in warm late-afternoon light

Too much torque is a real problem

It is also worth checking the CPSC recall database for any model before you buy second-hand. High-torque drivers routinely snap screw heads, strip threads in softwood, drive fasteners straight through thin material and cam out and destroy a recess. The remedies are technique rather than a weaker tool: use the lowest speed or assist mode the driver offers, seat the bit fully and keep the tool square to the fastener, ease off the trigger as the head approaches the surface, and pre-drill pilot holes in hardwood and near board ends. For work where a precise stopping point matters — small brass screws, hinge hardware, anything delicate — use a drill driver with a numbered clutch instead, because an impact driver has no clutch and does not know when to stop.

Buying

Choose the battery platform first, then the class of tool, then argue about torque. Owner reviews across the category consistently rate impact drivers on ergonomics, trigger control and bit retention rather than on peak torque, because almost every modern driver has more torque than a home user needs. Our impact driver picks weigh those, impact driver vs impact wrench settles which tool you actually want, and do you need an impact driver answers the question underneath it. If a drill is doing the same work, cordless drill picks is the other half of the kit.

We do not buy, test or physically handle any product on this site. Torque figures reflect 2026 US manufacturer specifications, which are peak values measured under maker-specific conditions — see how we rank.