Editorial Reviews - Hand-Held Power Tools From the Publisher Chapters: Drill, Impact Wrench, Jackhammer, Hammer Drill, Angle Grinder, Rivet Gun, Ceramic Tile Cutter, Heat Gun, Electric Torque Wrench, Die Grinder, Pneumatic Torque Wrench, Hydraulic Torque Wrench, Rotary Tool, Screw Gun, Wall Chaser. Excerpt: A drill (from Dutch: drillen) or drill motor is a tool fitted with a rotating cutting tool, usually a drill bit, used for drilling holes in various materials. The cutting tool is gripped by a chuck at one end of the drill and rotated while pressed against the target material. The tip of the cutting tool does the work of cutting into the target material. This may be slicing off thin shavings (twist drills or auger bits), grinding off small particles (oil drilling), crushing and removing pieces of the workpiece (SDS masonry drill), countersinking, counterboring, or other operations. Drills are commonly used in woodworking, metalworking, construction and most "do it yourself" projects. Specially designed drills are also used in medicine, space missions and other applications. A wooden drill handle and other carpentry tools found on board the 16th century carrack Mary Rose.The earliest drills were bow drills which date back to the ancient Harappans and Egyptians. The drill press as a machine tool evolved from the bow drill and is many centuries old. It was powered by various power sources over the centuries, such as human effort, water wheels, and windmills, often with the use of belts. With the coming of the electric motor in the late 19th century, there was a great rush to power machine tools with such motors, and drills were among them. The invention of the first electric drill is credited to Arthur James Arnot and William Blanch Brain , in 1889, at Melbourne, Australia. Wilhelm Fein invented the portable ele... More: http://booksllc.net/?id=205126 Synopsis Chapters: Drill, Impact Wrench, Jackhammer, Hammer Drill, Angle Grinder, Rive