A hollow drill is a mechanical device used for drilling holes through various objects and surfaces. It can be made from different types of strong metal and come in a variety of shapes and sizes. Hollow bits are used in many industries and for a variety of purposes, including drilling holes in paper, rocks, and […]
Compact drills are designed to fit into tight spaces and are used by professionals in limited environments. They have a sleek design, can be operated one-handed, and have various features such as attached flashlights and magnetized heads. They can be battery or corded and accept a variety of heads with forward and reverse and variable […]
Drill plates guide the location of holes and create uniform patterns. They are made of plastic, acrylic, aluminum, or steel. Punch plates prevent costly mistakes and guide drill bits for straight holes. They are used in construction and mechanical applications and can cut a range of hole sizes. A drill plate is a template used […]
Hydraulic rock drills are heavy equipment used in construction, excavation, and drilling. There are two types: manual and industrial. Coolant is used to prevent overheating, and regular maintenance is necessary for peak efficiency and longevity. Hydraulic rock drills are a type of heavy equipment that can be used in a number of different construction, excavation […]
Drill rods made of high carbon steel are used to make various tools and bearings. They come in different diameters and can be water or oil-hardened. Water-hardened rods are easier to work with but not suitable for welding, while oil-hardened rods are tougher and can be welded. Hardening is done by heating and cooling the […]
A drill jig holds material and guides the drill for accurate, repetitive holes. It can be custom-made from metal or wood and has a locking system to keep it in place. While it has lost popularity in mass production, it remains popular in home wood shops. A drill jig does two important, repetitive jobs by […]
Drill chucks hold rotating bits and can hold other rotary tools, with keyed or keyless options. Keyed chucks require a removable key, while keyless chucks use a sleeve. Chucks can have up to six jaws, with self-centering chucks being common for home power drills. Self-centering chucks use a rotating collar to move the jaws together […]
A drill socket is a tool used with an electric drill to adapt sockets for use in tightening and loosening nuts and bolts. It has a hexagonal end to lock into the drill chuck and a square end to hold removable sockets. They come in different sizes and materials and are used in various applications. […]
A drill gauge is a tool used to determine the size of a drill bit, with holes representing various sizes. Bit sizes are based on diameter and can be metric or fractional. Drill bits were traditionally sized using a gauge system. Builders can use a drill gauge to size a fastener or determine which bit […]
A bone drill is a surgical device used to fix broken bones by creating holes for surgical pins and screws to attach to. It saves limbs that would have required amputation, and its accuracy and speed promote faster healing. A bone drill is a device used by surgeons to fix broken bones. The bone drill […]
A concrete core drill uses a large, high-torque motor and a hollow tube bit with teeth to grind concrete. Water is used to reduce heat and dust. Safety precautions include securing the base and using hazard signage. A concrete core drill is a large, high-torque drill motor with a large stud for attaching a concrete […]
A drill shank test determines the geological composition of the area surrounding a drill pipe used for natural gas or oil extraction. The test helps determine if drilling in the area is viable and can take up to 24 hours. Safety precautions are necessary due to volatile materials. Sometimes known as a DST, a drill […]
A magnetic drill has a magnetic base that locks onto a steel beam, allowing for precise drilling without movement. It is useful in construction sites and can be used to mill and shape steel. Magnetic drills are affordable and have made cutting torches obsolete. A magnetic drill is a drill-like machine with a magnetic base. […]
Drill bushings guide drill bits for precision drilling in manufacturing and metalworking. They ensure even paths and identically sized holes, reducing human error. Jigs secure bushings, and countersink bits create clean openings for bolt fasteners. Worn bushings should be replaced. A drill bushing is a cylindrical metal guide piece used to direct the approach and […]
Drill pipe is used for well drilling and is made of steel in various lengths, weights, and strengths. It pumps drilling fluid to clean the drill bit and remove chips. The drill string consists of a drill collar, drill bit, and drill pipe. It can be expensive but is examined for flaws and weaknesses after […]
Machine drills can be machine-driven or part of a machining tool. The first drills were human-powered, but the bow drill was the first indirectly fed drill. Power drills evolved into the hand drill and drill press. Machining tool drills vary in complexity and can be part of an automated assembly line or a single machine […]
The twist drill is a popular and cheap type of drill bit with helical flutes that spiral into the tip. It’s easy to use and can be thrown away when worn out. The angle of the tip is important and varies based on the material being drilled. Most are made of high-speed steel. The twist […]
Fire drills are practiced evacuations of buildings, conducted by households, businesses, or governments. Participants calmly exit the building and reassemble in a designated safe area. The drill is used to determine if the building can be safely evacuated in the event of an actual fire. Many countries require mandatory fire drills in schools and government […]
A hammer drill is a tool used for efficient drilling of masonry and concrete. It combines a hammering and chiselling action with the rotary motion of the drill bit. The drill bits used are dedicated bits for masonry or concrete. Hammer drills come in a wide range of power ratings and include both AC and […]
A hammer drill is used for drilling hard surfaces like concrete, brick, and stone. It has a movable chuck that hammers the wall as the drill turns, allowing it to break down the surface. It can be used for both regular and hammer drilling, and comes in corded or battery-powered versions. The rotary hammer is […]
