How does a cordless drill driver work?

How does a cordless drill driver work?

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Cordless drill driver with the inside mechanisms revealed Think of a cordless drill driver like an electrical circuit.  Every time you pull the speed control trigger you are completing the circuit, allowing power to flow through the tool.
Rechargeable battery inside a cordless drill driver

Step 1 – Battery

Every cordless drill driver has a rechargeable battery.

Switch behind the speed control trigger inside a cordless drill driver

Step 2 -Speed control trigger

When you pull the speed control trigger, a switch on the other side of the trigger (inside the tool’s casing), conducts electricity from the rechargeable battery to the motor.

Silver motor for a cordless drill driver

Step 3 – Motor

The motor converts the battery’s electrical energy into mechanical energy giving the rotation required to turn the chuck.

Gear box inside a cordless drill driver

Step 4 – Gear box

This power is a combination of torque (turning force) and speed and is transferred to the chuck via the gearbox.

Depending on the make and model of your cordless drill driver, the gearbox may offer the possibility to select different gears, and therefore speed ranges.

Black chuck for a cordless drill driver

Step 5 – Rotate chuck

The motor’s power causes the chuck to rotate, allowing the drill driver to drill holes and drive screws (with the required drill bit or screwdriver bit).