What it is: A cordless electric screwdriver powered by an 8V battery

What it helps with: Driving screws quickly with more power for tougher materials

Compared to others: More torque and speed than lower-voltage models.

Best for: Medium-duty assembly, furniture building, and light construction.

What it is: A compact cordless screwdriver with a 4V battery

What it helps with: Quick fastening in light to medium tasks

Compared to others: Balanced size and power; more portable than 8V but stronger than 3.6V

Best for:  DIY projects, home repairs, and general maintenance.

What it is:  A small, lightweight cordless screwdriver powered by a 3.6V battery

What it helps with: Light-duty screwdriving in tight or hard-to-reach spaces

Compared to others: Most compact and portable; less torque than higher-voltage options

Best for: Electronics, small furniture, and precision tasks.

What it is: specialised screwdrivers—impact models deliver bursts of torque, and cordless models provide portable powered fastening.

What it helps with:  Driving screws into hard materials (impact) or general fastener tasks (cordless)

Compared to others: Impact screwdrivers handle tougher jobs; cordless screwdrivers offer all-around convenience

Best for: Heavy-duty fastening (impact) or everyday assembly and repairs (cordless).