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Pipe cutting or pipe profiling is a mechanized industrial process that removes material from pipe or tubing to create a desired profile. Typical profiles include straight cuts, mitres, saddles and midsection holes. These complex cuts are usually required to allow a tight fit between two parts that are to be joined via arc welding.
A hardy has a square shank, which prevents it from rotating when placed in the anvil's hardy hole. [2] The term "hardy", used alone, refers to a cutting chisel used in the square hole of the anvil. Other bottom tools are identified by function. Typical hardy tools include chisels and bending drifts. They are generally used with a matching top tool.
The hardy hole is a square hole into which specialized forming and cutting tools, called hardy tools, are placed. It is also used in punching and bending operations. These are not to be confused with swage blocks, although their purpose is similar. The pritchel hole is a small round hole that is present on most modern anvils. Some anvils have ...
An annular cutter (also called a core drill, core cutter, broach cutter, trepanning drill, hole saw, or cup-type cutter) is a form of core drill used to create holes in metal. An annular cutter, named after the annulus shape , cuts only a groove at the periphery of the hole and leaves a solid core or slug at the center.
Watts Brothers Tool Works is a tool manufacturer located in Wilmerding, Pennsylvania.They are known for manufacturing drill bits that can drill square holes, [1] [2] including blind holes, which cannot be made with other methods such as broaching.
A Forstner bit could bore the mounting hole for the hinge, but particle board and MDF are very abrasive materials, and steel cutting edges soon wear. A tungsten carbide cutter is needed, but the complex shape of a forstner bit is difficult to manufacture in carbide, so this special drill bit with a simpler shape is commonly used.