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Elektrische Gipssäge, a cast saw by Ortopedia (Kiel, Germany), is a power tool used to remove orthopedic casts which has an oscillating blade instead of a circular saw with a rotating blade This type of oscillating tool was originally developed by the German manufacturer Fein in 1967 [ 1 ] with a design intended to remove plaster casts easily ...
A rotary hammer, also called rotary hammer drill [1] is a power tool that can perform heavy-duty tasks such as drilling and chiseling hard materials. [2] It is similar to a hammer drill in that it also pounds the drill bit in and out while it is spinning. However, rotary hammers use a piston mechanism instead of a special clutch.
Operation of reciprocating saw swashplate mechanism. The reciprocating action may be produced in several ways. A crank [6] or Scotch yoke type drive may be used, a swashplate [7] type drive, a captive cam or eccentric, barrel cam, [8] or other rotary to linear drive.
A jackhammer (pneumatic drill or demolition hammer in British English) is a pneumatic or electro-mechanical tool that combines a hammer directly with a chisel. It was invented by William McReavy, who then sold the patent to Charles Brady King. [1] Hand-held jackhammers are generally powered by compressed air, but some are also powered by ...
In masonry, it refers to shaping a stone to a rough square by use of an axe or hammer. [1] In Kent, rag-stone masons call this "knobbling". [1] It was similarly used to shape grindstones. In modern construction, scabbling is a mechanical process of removing a thin layer of concrete from a structure, typically achieved by compressed air powered ...
Masonry bits typically are used with a hammer drill, which hammers the bit into the material being drilled as it rotates; the hammering breaks up the masonry at the drill bit tip, and the rotating flutes carry away the dust. Rotating the bit also brings the cutting edges onto a fresh portion of the hole bottom with every hammer blow.