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2. Jigsaw (tool) - Wikipedia

   en.wikipedia.org/wiki/Jigsaw_(tool)

   A power jigsaw Battery-powered jigsaw T-shank blades A jigsaw is a reciprocating saw that can cut irregular curves , such as stenciled designs, in wood , metal , or other materials. Jigsaws first emerged in the 19th century [ 1 ] and employed a treadle to operate the blade, which was thin and under tension, being secured at both ends to an ...

3. Shear (sheet metal) - Wikipedia

   en.wikipedia.org/wiki/Shear_(sheet_metal)

   Close-up of upper blade, lower blade, backgauge and work-holding device of a Gasparini guillotine shear. The design of press tools is an engineering compromise. A sharp edge, strength, and durability are ideal, but a sharp edge is not very strong or durable, so blades for metal work tend to be square-edged rather than knife-edged.

4. List of blade materials - Wikipedia

   en.wikipedia.org/wiki/List_of_blade_materials

   The blade is made of non-rustproof carbon steel, blue-plastered by hand and finely forged from the base to the tip of the knife. The 90 mm (3.5 in) long blade shows patina (dark spots) caused by decades of use. It can easily be sharpened to a shaving sharp edge. Carbon steel is a popular choice for rough-use knives and cheaper options.

5. Saw - Wikipedia

   en.wikipedia.org/wiki/Saw

   Some whipsaws are frame saws and some have a heavy blade which does not need a frame called a mulay or muley saw. Ice saw: for ice cutting. Looks like a mulay saw but sharpened as a cross-cut saw. Jigsaw or "saber saw" (US): narrow-bladed saw, for cutting irregular shapes. (Also an old term for what is now more commonly called a "scroll saw.")

6. Oscillating multi-tool - Wikipedia

   en.wikipedia.org/wiki/Oscillating_multi-tool

   A non-symmetric scraper blade for an oscillating power tool Saw blade for an oscillating power tool. Various attachments and blades are on the market, giving these machines a wide variety of uses. The blades can be separated into 5 main categories: cutting; tile, grout and masonry; sanding; scraping; and polishing.

7. Bandsaw - Wikipedia

   en.wikipedia.org/wiki/Bandsaw

   This type of metal-cutting bandsaw is often equipped with a built-in blade welder. This not only allows the operator to repair broken blades or fabricate new blades quickly, but also allows for the blade to be purposely cut, routed through the center of a part, and re-welded in order to make interior cuts.