Air drills, also known as jackhammers, are large, portable compressed air drills used for construction and salvage work. They rely on air pressure from diesel-powered compressors to move the bits up and down. Air drills are efficient, but noisy and require training to operate safely. They consist of an outer casing, handle, hoses, drill bit, […]
A right angle drill has a chuck at a 90 degree angle to the rest of the tool, making it useful for working in tight spaces. It is commonly used by plumbers and electricians, but can also benefit hobbyists and DIYers. Researching different brands is important before making a purchase. A right angle drill is […]
A drill clamp attaches to a portable drill, allowing it to be used as a stationary tool. It’s commonly used by professionals in the field and hobbyists with limited workshop space. The clamp locks the drill in place, providing precision and control for tasks such as drilling holes or polishing materials. It’s important to choose […]
A radial drill press has an extended arm for drilling large workpieces. It allows movement in multiple directions and can drill non-vertical holes. Large industrial machines have large drill bits and cooling systems, while smaller DIY versions have similar flexibility. A radial drill press is a machine tool that has an extended arm or beam […]
A drill collar is a solid steel bar used in oil well drilling to weight down the drill bit and allow it to drill into rock. It forms the lowest element of a drill string and can vary in diameter and external configuration. Equipment used with drill collars includes clamps, slides, and die collars. A […]
The United States Army drill instructor is responsible for training new recruits in the basics of army life and the mission of the army. They are responsible for training recruits as combat soldiers and instilling core values. The drill instructor wears a round brown campaign hat and is responsible for teaching recruits all aspects of […]
Disaster drills simulate disasters to practice responses, identify weaknesses, and familiarize people with steps to take. They range from basic drills for individuals to community-wide exercises with civilian actors. Regular drills are required for public buildings and can be organized for families. A disaster drill is an exercise in which people simulate the circumstances of […]
The bow drill is a simple device made of wood and rope used to make fire, traced back to ancient civilizations. It has also been used for dentistry and woodworking. To make one, you need a bow, spindle, socket, and hand grip. The user draws the bow back and forth to create friction and generate […]
