Power Tool

Impact Driver

Impact drivers are compact fastening tools that combine rotation with repeated rotational impacts to drive screws and other compatible fasteners.

Comparison · Bits · Applications · Articles

Related: Drill Machine · Impact Wrench

Impact driver vs. drill vs. impact wrench

Impact drivers, drills, and impact wrenches can overlap in fastening work, but their drive systems, interfaces, control, and typical applications differ.

ToolTypical interfaceBest suited toKey difference
Impact driverQuick-change hex colletScrews and compatible fastenersUses rotational impacts
Drill/driverAdjustable chuckGeneral drilling and controlled screwdrivingBroad bit compatibility and clutch control
Impact wrenchSquare driveNuts, bolts, and socket workBuilt around socket-driven fastening

Impact driver bits and setup

Impact driver bits and adapters must match the hex collet, fastener, and task, with impact-rated accessories used where repeated impact loading requires them.

Setup factorWhy it mattersPractical check
Bit typeMust match the fastener headUse the correct profile and size
Impact ratingAccessories see repeated impact loadingUse impact-rated accessories where required
Collet seatingA loose bit can slipConfirm the bit is locked in
Speed or modeChanges driving aggressivenessStart with appropriate control

Impact driver applications

Impact drivers are commonly used for screwdriving, long fasteners, construction and assembly, plus limited drilling with compatible hex-shank bits.

Impact driver articles

Browse practical impact driver articles covering bits, tool comparisons, buying choices, concrete drilling, troubleshooting, and common fastening tasks.

Using impact drivers

Bits and troubleshooting

Buying and comparisons

Milwaukee troubleshooting