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The Pawtuxet-class cutters were a class of six screw steam revenue cutters built for the United States Revenue Cutter Service during the American Civil War. The cutters served mostly on patrol and convoy escort duty during the war. In the postwar period, some were used as transports for government officials in addition to their normal duties.
A screw extractor held in a tap wrench. A screw extractor is a tool for removing broken or seized screws.There are two types: one has a spiral flute structure, commonly called an easy out after the trademarked name EZ-Out; [clarification needed] the other has a straight flute structure.
A screw machine may refer to a: Screw machine (automatic lathe), a small- to medium-sized automatic lathe that is mechanically automated via cams; Screw machine (turning center), a small- to medium-sized turning center that is electronically automated via CNC; Screw-cutting lathe; Turret lathe, now rarely called screw machines
A bolt cutter, sometimes called bolt cropper, is a tool used for cutting bolts, chains, padlocks, rebar and wire mesh. It typically has long handles and short blades, with compound hinges to maximize leverage and cutting force. A typical bolt cutter yields 20 kilonewtons (4,500 lb f) of cutting force for a 250 newtons (56 lb f) force on the ...
Milling cutters are cutting tools typically used in milling machines or machining centres to perform milling operations (and occasionally in other machine tools).They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter's shape (e.g., a form tool such as a hobbing cutter).
It is a power-driven metal cutting machine which assists in managing the needed relative motion between cutting tool and the job that changes the size and shape of the job material. [1] The precise definition of the term machine tool varies among users, as discussed below. While all machine tools are "machines that help people to make things ...