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

Impact driver vs. drill vs. impact wrench

These tools overlap, but their drive systems and typical jobs are different.

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

Use compatible hex-shank accessories and impact-rated bits or adapters where required.

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

Common applications

Impact Driver articles

Using impact drivers

Bits and troubleshooting

Buying and comparisons

Milwaukee troubleshooting