Three-drilling machine is a type of multi-drilling machine and applying to wardrobe, cupboard, office furniture etc. It can make dozens of holes once. This drilling machine can work at 0 to 90 degree. It can make hole on surface and side of boards at same time. This machine has a strong construction. The machine body is durable and doesn’t deform after heat treatment. This machine greatly improves the work efficiency. This type of drilling machine is a good choice for a large furniture factory. It can reduce working cost.