手鉆

A hand drill machine, also known simply as a hand drill, is a manual tool used for drilling holes in various materials such as wood, metal, plastic, and more. It is a simple and veatile tool that does not require electricity or batteries to operate. Itead, it relies on human power to rotate the drill bit and create a hole.The basic components of a hand drill include a handle, a gear mechanism, and a chuck that holds the drill bit. The user grips the handle and tur it in a clockwise direction, which causes the gea to rotate and trafer the motion to the chuck. The chuck, in turn, rotates the drill bit, allowing it to penetrate the material being drilled.Hand drills are often used for tasks that do not require high-speed drilling or for situatio where access to electricity is limited. They are portable, easy to use, and suitable for various applicatio such as woodworking, metalworking, and general DIY projects. While electric power drills have become more common due to their convenience and efficiency, hand drills remain useful in certain situatio where a more controlled and manual approach is preferred.