Flat-head screwdriver

Phillips-head screwdriver

Torx screwdrive

Hex driver

Needle-nose pliers

Wire cutters

Tweezers

Flashlight

Wire stripper

Crimper

Punch-down tool

Soft cloth

Compressed air

Digital multimeter

Basic hardware components of a personal computer, including a monitor, a motherboard, a CPU, a RAM, two expansion cards, a power supply, an optical disc drive, a hard disk drive, a keyboard and a mouse Inside a custom-built computer: power supply at the bottom has its own cooling fan