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Before boring machines were invented, carpenters used hand-powered augers to bore holes. Most common were T-handled augers. The shape of the drill bits changed over time, with the spoon bit and shell bit being common before the invention of the spiral or twist bit in 1771 [1] which removes the cuttings as it turns. The exact origin of this ...
Manufacturer Headquarters Brands Products Altendorf GmbH: Minden, Germany: Altendorf: Table saws, panel saws: Andreas Stihl AG & Company KG: Waiblingen, Germany: Stihl, Viking [1]: Outdoor power equipment [2]
A gimlet is a hand tool for drilling small holes, mainly in wood, without splitting. It was defined in Joseph Gwilt's Architecture (1859) as "a piece of steel of a semi-cylindrical form, hollow on one side, having a cross handle at one end and a worm or screw at the other". [1] A gimlet is always a small tool.
Masonry bits up to 1,000 mm (39 in) long can be used with hand-portable power tools, and are very effective for installing wiring and plumbing in existing buildings. A star drill bit , similar in appearance and function to a hole punch or chisel, is used as a hand powered drill in conjunction with a hammer to drill into stone and masonry .
By 1959, Thor Power Tool Company's annual volume had surpassed $30 million. [2] By the early sixties, Thor Power Tool Company was acquired by the Stewart-Warner Corporation. A short time later, Neil C. Hurley, Jr. died from a third heart attack, February 9, 1965, at the age of 54 and the Thor brand name almost died.
Directional boring, also referred to as horizontal directional drilling (HDD), is a minimal impact trenchless method of installing underground utilities such as pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground path using a surface-launched drilling rig. Directional boring offers significant ...
The Van Norman Machine Tool Company was an American machine tool builder from late in the 19th century until the mid-1980s. The company was based in Springfield, Massachusetts, USA. Its main areas of focus were milling machines and grinding machines. The company was acquired by Universal American Corporation during the early 1960s.
Roe (1916) says that "Up to that time boring machines were relied on only for large and rough work." [5] Bullard Sr.'s son, Edward Payson Bullard Jr. (1872–1953), continued the family machine tool business and brought the turret principle to the vertical boring mill, making it a vertical turret lathe. [6]