Drilling/Fastening: Cordless drill, hammer drill, impact driver, rotary hammer
How They Work
- Cordless Drills & Hammer Drills: Most use a keyless 3-jaw chuck that allows you to swap between various round or hex-shank bits easily.
- Impact Drivers: These typically use a 1/4-inch hex collet, making them more compact for tight spaces. They deliver bursts of rotational torque rather than forward hammering.
- Rotary Hammers: These use specialized SDS-plus bits
