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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.
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 bottom plate may be a permanent part of the device, or interchangeable plates with different hole sizes may be supplied. Three corrugated feet on the base, or two ears on the rim plus the handle, fit on the rim of a cooking pot and hold the mill in position over it. Food mills are usually made of stainless steel or aluminum.
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
A part's-eye view of a boring bar. Hole types: Blind hole (left), through hole (middle), interrupted hole (right). In machining, boring is the process of enlarging a hole that has already been drilled (or cast) by means of a single-point cutting tool (or of a boring head containing several such tools), such as in boring a gun barrel or an engine cylinder.
The one-half turn can easily be done precisely using any indexing plate with an even number of holes and rotating to the halfway point (Hole #8 on the 16-hole ring). Brown and Sharpe indexing heads include a set of 3 indexing plates. The plates are marked #1, #2 and #3, or "A", "B" and "C". Each plate contains 6 rows of holes. Plate #1 or "A ...