question: The difference between DIY grade power tools and professional grade power tools
comment: The wear parts in professional tools are much better designed; bearings, bushings, contactors, brushes. This makes them much more expensive, for no real change in function, and have much longer life. If you use your saw for hours every day, you will have it long enough for it to wear out. It's a big advantage to have one that lasts 5 times longer and costs 3 times as much. For a DIYer, either saw will last a lifetime, and one is 3 times as much.
passages: Standard sanding attachments allow the user to sand flat surfaces and specialty attachments such as the profile sanding kit allow detailed profile sanding work to be done.
  
  Polishing is possible with the help of polishing pad attachments that are becoming more popular.
  
  The arbor attachment on all machines has varied widely since these machines started production, with many machines using a proprietary arbor configuration. Many after-market blade companies have created universal arbor attachments that are compatible with most, but not all, oscillating multi-tool machines.
   The lowest tier was originally branded "Sears". The company also used the "Dunlap" name for its lesser quality tools from the late 1930s until the late 1950s. The Sears tool line was discontinued in the late 1980s and replaced by the "Companion" tool line. The Companion tool line was itself discontinued and replaced by the "Evolv" tool line in 2008, with a focus on homeowners and DIYers. Evolv tools also have a lifetime warranty but require that the customer have the original dated receipt to make a claim.
   Many Craftsman portable power tools have been manufactured by Techtronic Industries. Previously, these products were produced by the Diehl Motor Company (a one time division of Singer) and Ryobi. Both Singer and Ryobi have been condensed under the Techtronic company umbrella (these tools had a "315" or "973" prefix; most of the "315" product was made in the United States). Sears hand power tools have also been produced by DeWalt. These tools will typically have a "900" model prefix. Some, such as the corded and cordless drills, were indistinguishable, other than the color and decal labels. Many Craftsman bench and stationary power tools have been manufactured by Emerson Electric Company under the "113" model prefix (previously under the "103" model prefix which was King-Seeley, but Emerson bought them out in the 1960's) and DeWalt. Air compressors were manufactured by DeVilbiss Air Power (part of Dewalt), and formerly by Campbell Hausfeld. (DeVilbiss sourced units have a "919" model prefix and Campbell Hausfield had a "106" model prefix). 
   Multi-tool (powertool)
  
  Multi-tool is a common name for an oscillating power tool powered by battery or mains. The name "multi-tool" is a reference to the many functions that this tool can perform with the range of attachments available. "Master Tool" is also a trade name used in North America, short for the original tool by Fein called the Multi-Master. So far there are tools available to saw, sand, rasp, grind, scrape, cut and polish.
   Power tools are classified as either stationary or portable, where portable means hand-held. Portable power tools have obvious advantages in mobility. Stationary power tools, however, often have advantages in speed and precision. A typical table saw, for instance, not only cuts faster than a regular hand saw, but the cuts are smoother, straighter, and more square than what is normally achievable with a hand-held power saw. Some stationary power tools can produce objects that cannot be made in any other way. Lathes, for example, produce truly round objects.
   The items that are carried are classified in six categories, Stationary Power Tools, Handheld Power Tools, Hand Tools, Air Tools, Tool/Garage Storage, and Other Hardware accessories. MasterCraft Maximum is a fairly new brand of tool released by Mastercraft in 2016.
  
  Section::::Stationary power tools.
  
  These include: table saws, bench grinders, table or spindle sanders, drill presses, arc welders, etc.
  
  Section::::Handheld power tools.
   Power tools have a one-year warranty.
  
  Section::::Legal disputes.
  
  Craftsman tools came under fire in 2004 in a lawsuit accusing Sears of false advertising and consumer fraud for questionable use of the slogan "Made in the USA".
   Various attachments and blades have come on the market giving these machines a wide variety of uses. The blades can be separated into 5 main categories: cutting, tile, grout & masonry, sanding, scraping and polishing.
   Several power tool manufactuers use or offer Systainer-compatible variants. Other manufactuers use the alternative Sortimo L-Boxx design.
  
  The term "Systainer" was trademarked in the United States in January 1994.
  
  Section::::Variations.
  
  In 2009, the design of Tanos' T-Loc stacking boxes was registered in the name of Timo Kuhls.
  
  In 2011, the design of Makita's Makpac stacking boxes was registered in the names of Yuji Yamamot and Kiyozumi Kokawa.
  
  In 2014, the design of Tanos' cantilever toolbox was registered in the name of Timo Kuhls.
   Section::::Services.:Training.
  
  The CTL offers affordable workshops open both to Tool Library members and the public on tool related skills and projects. In the Intro to Tools workshop, participants built a planter box; while in Routers 101, attendees created a cutting board.
  
  Section::::Mission.
  
  Section::::Mission.:Tool library.
  
  The Tool library performs the following main tasks:
  
  BULLET::::- Tool Lending: all kinds for use in volunteer projects, facility maintenance and improvement projects, community improvement events, and special events.
   Some tools have codes on them that correspond to the manufacturer that produced the product for Sears (see Alloy Artifacts website reference below). For example, on hand tools, codes on them will indicate who made them for Sears. For example, Western Forge sourced tools will have a "WF" stamped on the tool. Tools produced by Moore Drop Forge will have a "V" on them, tools from Pratt-Reed will have "PR" on them, Easco will have an "E" or "EE", and later Danaher made tools (US made) will have a "VV" or a "VɅ" (inverted second "V"). Pliers have been sourced by a few vendors including the aforementioned Western Forge "WF" tools and Wilde Industries which have a "P" on the tool. Some sockets (notably the 3/4 drive US made units) were made by S-K (coded "X" on the tool). Many major Sears Craftsman items as noted above also have a vendor prefix, which is typically the first three digits before the period or dash in the model number. These first three digits correspond to the vendor code, or the actual manufacturer contracted to make the product for Sears.
   Sears' tool line, like many of its other product lines, uses a "good, better, best" pricing structure, with the "Craftsman" brand as the middle tier and "Craftsman Professional" or "Craftsman Industrial" as the highest tier. Craftsman Professional and Craftsman Industrial are marketed as being comparable to brands like Cornwell Quality Tools, SK, Snap on, Proto, Mac, and Matco. The standard Craftsman line is marketed as being comparable in quality to other mid-price brands including UltraPro (NAPA), Westward, Gray, Husky, and Kobalt. Sears also marketed a "Sears Best" line of hand tools for a time.
   The full text of the warranty is as follows:
  
  Sears has reduced the warranty in effect on many Craftsman non-powered lawn and garden products including rakes, shovels, clippers, brooms, trowels, pruners, hoses, sprinklers, hose nozzles, and other small gardening hand tools. Previously it was a lifetime warranty which on August 2, 2012, was reduced to 25 years with receipt required. The lifetime warranty does not include precision hand tools, such as calipers and torque wrenches.
   Other versions may include items like a nail file, tweezers, folding scissors, a tooth pick, a magnifying glass, screwdriver bits and others. There are also versions that have special tools for specific sports or outdoor activities like golf, horseback riding, hunting or fishing. Versions intended for cyclists may have a selection of allen (hex) keys, a selection of wrenches, screwdrivers, a spoke key, and a chain-breaker.
  
  Models like the Wenger SwissGrip, Wenger Pocketgrip, Al Mar 4x4, SOG ToolClip, Snap-on and CRKT Zilla-Tool are similar in style.
  
  Section::::Folding multi-tools.
   Some Sears stores limit the number of hand tools that can be exchanged per day, in an effort to reduce the abuse of the lifetime warranty. Stanley Black & Decker has stated that all previous warranties on Craftsman products will be honored after the purchase of Craftsman in 2017. Some of the newer packaging (as of 2018 onward) on some Craftsman products does indicate that there may be a limit on returning warranty tools. As of February 2019, the "non-Sears" Craftsman does not have "open stock" in the stores as Sears does to replace individual items from a set that may require warranty. Stanley Black and Decker has indicated that they are working on introducing more individual tools to stores.
   TrueScale Miniatures’ first products were 1:18 and 1:43 scale replicas of specific tools from the Snap-on catalog. These miniature tool sets are typically used by modelers and collectors for use in automotive dioramas. These first sets are called "Garage Essentials" and include miniature replicas of 10 tools in the 2006 Snap-on Tool Catalog that would be found in many household garages. In 2008 they released their "Shop Essentials" set which offers scaled replicas of Snap-on tools found in many automotive service stations. Both sets are a part of their "Garage Series" which can still be found not only in many industry related retail outlets, but some official Snap-on franchisees as well. The 1:18 scale sets are mainly diecast metal with some plastic implementation whereas the 1:43 scale sets are mainly plastic with some diecast metal.
   Power tools are used in industry, in construction, in the garden, for housework tasks such as cooking, cleaning, and around the house for purposes of driving (fasteners), drilling, cutting, shaping, sanding, grinding, routing, polishing, painting, heating and more.
   The oscillating blade will not clear swarf in the same way as a rotating blade so it is necessary to move the blade back and forth to clear built up sawdust and clear the blades.
  
  Improvements in battery technology such as lithium ion have allowed for tools which can be small in size and weight but still perform well enough to compete with mains-powered equivalents while freeing the user from the restrictions of cables.
  
  Section::::Blades and accessories.
   Power tool
  
  A power tool is a tool that is actuated by an additional power source and mechanism other than the solely manual labor used with hand tools. The most common types of power tools use electric motors. Internal combustion engines and compressed air are also commonly used. Other power sources include steam engines, direct burning of fuels and propellants, such as in powder-actuated tools, or even natural power sources such as wind or moving water. Tools directly driven by animal power are not generally considered power tools.
   Hand tool
  
  A hand tool is any tool that is powered by hand rather than a motor. Categories of hand tools include wrenches, pliers, cutters, files, striking tools, struck or hammered tools, screwdrivers, vises, clamps, snips, saws, drills and knives. 
  
  Outdoor tools such as garden forks, pruning shears, and rakes are additional forms of hand tools. Portable power tools are not hand tools.
  
  Section::::History.
   There are different types of form tools. Insert form tools are the most common for short- to medium-range jobs (50 to 20,000 pcs). Circular form tools are usually for longer jobs, since the tool wear can be ground off the tool tip many times as the tool is rotated in its holder. There is also a skiving tool that can be used for light finishing cuts. Form tools can be made of cobalt steel, carbide, or high-speed steel. Carbide requires additional care because it is very brittle and will chip if chatter occurs.
   The rear of the machine can be outfitted with various work tools to complement the front blade:
  
  BULLET::::- The rear of the machine can have large slabs of steel to add weight to the rear of the machine to aid in heavy dozing applications.
  
  BULLET::::- A drawbar and CCU (Cable control unit) for pulling towed scrapers and trailed implements; later models now use hydraulics in place of the CCU to operate scrapers.
   BULLET::::- Airetool – tube cleaners and expanders
  
  BULLET::::- APEX Assembly & Fabrication Tools – production impact sockets, bits, and universal joints
  
  BULLET::::- Buckeye – material embossing
  
  BULLET::::- Cleco – assembly tools
  
  BULLET::::- Cooper Automation – automated fastening systems
  
  BULLET::::- DGD – automated systems
  
  BULLET::::- Doler – advanced drilling equipment
  
  BULLET::::- Dotco – material removal tools
  
  BULLET::::- Geta
  
  BULLET::::- Master Power – industrial air tools
  
  BULLET::::- Metronix – Servos, drivers, and speed controls
  
  BULLET::::- Quackenbush – advanced drilling equipment
  
  BULLET::::- Recoules – drilling tools
  
  BULLET::::- Rotor – assembly equipment
  
  BULLET::::- Utica – torque measurement and control tools
   BULLET::::- A list of the work materials is required for the assignment of cutting conditions. Different qualities and additional terms for the materials are contained in the list, and extended by the individual designations as used by the respective enterprise.
  
  BULLET::::- The tool classification is used to organize the tools in technical terms. All tools assigned to the same tool class are suitable for the same task, but they have different sizes. The tool classes are organized in a tree, which is adapted and expanded by the user.
   Stationary power tools for metalworking are usually called machine tools. The term "machine tool" is not usually applied to stationary power tools for woodworking, although such usage is occasionally heard, and in some cases, such as drill presses and bench grinders, exactly the same tool is used for both woodworking and metalworking.
  
  Section::::History.
  