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A hand-held corded electric drill A lightweight magnetic-mount drill. A drill is a tool used for making round holes or driving fasteners. It is fitted with a bit, either a drill or driver chuck. Hand-operated types are dramatically decreasing in popularity and cordless battery-powered ones proliferating due to increased efficiency and ease of use.
A typical simple screwdriver has a handle and a shaft, ending in a tip the user puts into the screw head before turning the handle. This form of the screwdriver has been replaced in many workplaces and homes with a more modern and versatile tool, a power drill, as they are quicker, easier, and can also drill holes. The shaft is usually made of ...
Most of the tools were collected by Raphael Salaman (1906–1993), who wrote two classic works on the subject: Dictionary of Woodworking Tools [3] and Dictionary of Leather-working Tools. [4] David Russell's vast collection of Western hand tools from the Stone Age to the twentieth century led to the publication of his book Antique Woodworking ...
Drilling is a cutting process where a drill bit is spun to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute.
Derrickman: The third in command after the driller & assistant driller; handles the top end of drill string on round trips. Dope: A thick lubricant used on pipe connections. Drill string: A column, or string, of pipe that transmits drilling fluid (via the mud pumps) and torque (from the Kelly drive or top drive) to the drill bit.
Cordless torque screwdriver are powered by batteries, usually rechargeable batteries with voltages from 3.6 to 18 volts. Dedicated screwdrivers for domestic use tend to operate off 3.6 to 4.8 volts and have relatively low maximum torque; drill/drivers operate off higher voltages and can deliver higher maximum torque.
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As Henry Ford adapted to the manufacturing needs of World War II, he requested that A. H. Peterson, a tool manufacturer, create a lighter electric drill that was more portable for his assembly line workers. [20] At this point, the Hole-Shooter, a drill that weighed 5 lbs. was created by A. H. Peterson.