boormachines

Boormachines, or drills, are power tools designed to create holes in materials such as wood, metal, plastic, and masonry. They operate by rotating a drill bit that removes material as it cuts. Most hand-held drills are powered by electricity, either from a mains cord or a rechargeable battery, while others are stationary machines used in workshops or factories. Some models also combine rotation with percussive impacts to improve masonry drilling.

Common types include corded electric drills, which offer steady power for continuous use; cordless drills, valued for portability; hammer drills (percussion drills) that deliver rapid blows to help penetrate masonry; and drill presses, which are fixed machines providing precise, vertical holes. More specialized versions exist, such as magnetic drills for metal and heavy-duty rotary hammers for concrete.

A drill consists of a motor, a gear train, a chuck to hold bits, a trigger or switch, and speed or torque controls. Chucks are typically keyless or use keys. Bit types vary by material: wood bits (twist), metal bits (twist), masonry bits (carbide), and spade or auger bits for larger holes. Maximum hole size depends on the chuck and drill power.

Uses range from assembling furniture and DIY projects to construction and metalworking. Operators secure the workpiece, select an appropriate bit and speed, and apply steady pressure. Safety features may include a torque clutch, depth stop, and protective guards. Regular maintenance includes keeping bits sharp, cleaning dust, and charging batteries.

Boormachines have a long development history, evolving from hand-powered drills to electric handheld tools in the late 19th and early 20th centuries. The introduction of cordless models in the late 20th century increased portability and versatility. Today, drills are a standard tool in homes, workshops, and industrial settings.