Magnetic drilling machine
portable and precise drilling machine that is clamped against a magnetic surface, often directly on the workpiece
A magnetic drilling machine is a portable drilling machine with a magnetic base (either electromagnetic or permanent magnet). It can use twist drill bits, annular cutters, milling cutters, and other rotary cutters. With suitable bits it can also tap threads, ream, and countersink. Its combination of a stable magnetic base and low RPM help resist or reduce torque forces created by large diameter bits. Magnetic drilling machines with reversible motor and variable speed controls can also perform operations like tapping, countersink and reaming. A magnetic drilling machine with a cross table base can also perform light milling.
Description
A portable magnetic drilling machine is faster and more portable alternative to hole making machines such as the drill press, and is more accurate than a hand drill.
A portable magnetic drilling machine is used on steel or other magnetic materials. It gives an accuracy of 0.01 mm to 0.05mm in steel or other magnetic material. The drill bits used for this machines are generally made from high-speed steel(HSS) or are tungsten carbide tipped(TCT).
“Magnetic drilling machine” enters the record as portable and precise drilling machine that is clamped against a magnetic surface, often directly on the workpiece. Crown Archives preserves that source wording while asking what Magnetic, drilling and machine can confirm, complicate or overturn.
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This entry incorporates text from “Magnetic drilling machine” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.