Engineering
Includes callipers, dies & die nuts, feeler gauges, magnets, micrometers, punches, scrapers, scratch brushes, scribers, silver steel, spring dividers, steel rules, stencils, taps, threaded inserts and tin snips.
Sub Categories...
 A calliper is a device used to measure the distance between two symmetrically opposing sides. A caliper can be as simple as a compass with inward or outward-facing points.
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 A die is used to cut the male portion of the mating pair (e.g. a bolt). The process of cutting with a die is called "threading or chasing.
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 A feeler gauge is a simple tool used to measure gap-widths. Feeler gauges are mostly used in engineering to measure the clearance between two parts.
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 A magnet is a material or object that produces a magnetic field that is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials and attracts or repels other magnets.
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 A micrometer is a tool used widely in mechanical engineering and machining for precisely measuring, along with other metrological instruments such as dial calipers and vernier calipers. Micrometers are often, but not always, in the form of calipers.
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 A punch is a hard metal rod with a shaped tip at one end and a blunt butt end at the other that is usually struck by a hammer. A variety of punches are used in engineering, but often the purpose is to form an impression of the tip on a workpiece.
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 Engineers scrapers are developed for removing high spots on machined surfaces. Generally manufactured from selected steel they are suitably hardened and lightly tempered for lasting durability.
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 A scratch or wire brush is primarily an abrasive implement, used for cleaning rust and removing paint. It is also used to clean surfaces and to create a better conductive area for attaching electrical connections.
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 A scriber is a hand tool used in metalworking to mark lines on workpieces, prior to machining. This is used instead of pencils as the marks from pencils cannot be seen as clearly as scriber marks.
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 Silver steel is a high carbon bright steel, precision ground to very close tolerances. Close control of chemical analysis, particularly the chromium content, ensures optimum strength and hardenability and a consistent response to heat treatment.
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 The standard tools for stepping off equal distances; and taking, transfering, and reproducing exact inside and outside measurements. Machined to fine tolerances for smooth adjustments and excellent accuracy.
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 A machinist square or engineer's square is the metalworkers' equivalent of a try square. It consists of a steel blade inserted and either welded or pinned into a heavier body at an angle of 90 degrees.
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 Numerical and letter stencils in a variety of sizes. These are ideal for use with boxes and pallets.
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 Taps are cutting tools used to create screw threads in solid substances including, but not limited to, metal, wood, and plastic. A tap is used to cut the female portion of the mating pair (e.g. a nut).
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 A thread insert is a fastener element that is inserted into an object to add a threaded hole. They are used to repair a stripped threaded hole, to provide a more durable threaded hole in softer materials, and to mold or cast threads into a workpiece.
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 Tin snips are tools used to cut thin sheet metal. There are two broad categories: tinner snips, which are similar to common scissors, and compound leverage aviation snips, which use a compound leverage handle system.
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