Though Longtime Staples Of Electricians, corded power tools continue to evolve into ever-more effective, efficient workhorses. Design modifications include refinements that make them easier to use, more comfortable to work with (ergonomic rubber grips and contoured handles that make it easier to control and hold the tool), safer and lighter. They can provide more power for the weight than earlier models. In addition, some of the more mature tool lines have improved the line of sight to the work material by, for instance, changing the blade location on a circular saw. Tools may also reflect refinements that solve unique application problems, such as a recap saw featuring swiveling as well as a scrolling mode, and drills introducing improved fans permitting higher amp ratings and, therefore, more power. Other improvements include motor brushes featuring longer life and brush assemblies with fewer parts. In general, tools with fewer parts are easier to maintain and possibly offer improvement in reliability.
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