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An employee pours meat into a meat grinder at a slaughterhouse in Pori, Finland in 1958. The first meat grinder was invented in the nineteenth century by Karl Drais. [1] The earliest form of the meat grinder was hand-cranked and forced meat into a metal plate that had several small holes, resulting in long, thin strands of meat.
The bit was revolutionary as it did not feature the lead screw (which Forstner called the "gimlet-point") or the cutting lips of more conventional wood boring bits, [clarify] and thus proved especially useful to gunsmiths and high-end woodworkers. The bit was unsurpassed in drilling a smooth-sided hole with a flat bottom.
Concealed hinge drilling jig with embedded Forstner bit. A concealed hinge drilling jig is a type of support jig, designed for drilling 3 cm holes to fit concealed hinges into modern wardrobe doors. As many of the complementary tools used in woodworking, it uses an electric hand-drill for its operation, making a Forstner bit to turn. [1] [2]
Typically consists of a bowl, a plate with holes like a colander, and a crank with a bent metal blade which crushes the food and forces it through the holes. Funnel: Used to channel liquid or fine-grained substances into containers with a small opening. [2] A pipe with a wide, conical mouth and a narrow stem. Garlic press
Typically, a food mill consists of three parts: a bowl, a bottom plate with holes like those in a colander, and a crank fitted with a bent metal blade that crushes the food and forces it through the holes in the plate. The bottom plate may be a permanent part of the device, or interchangeable plates with different hole sizes may be supplied.
A spade drill bit for metal is a two part bit with a tool holder and an insertable tip, called an insert. The inserts come in various sizes that range from 7 ⁄ 16 to 2.5 inches (11 to 64 mm). The tool holder usually has a coolant passage running through it. [13] They are capable of cutting to a depth of about 10 times the bit diameter.