It is a spiral push drill where downward pressure on the body rotates the bit to drill the hole.
The typical drilling capacity is between 0mm and 3mm, which is ideal for most through-hole components.
Being non-electric and manual, it offers greater control and is less likely to cause damage from excessive speed or vibration, making it great for delicate work.
Primarily used for drilling component holes in home-made PCBs, it is also suitable for other crafts like jewelry making or working with other soft materials.
The simple downward push action makes it easy to operate for both beginners and experienced hobbyists.