Portable Electric Screwdriver: Difference between revisions
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'''Impact Screwdrivers''' are popular with [https://en.wikipedia.org/wiki/Joiner '''Joiners'''] working on construction sites with long, modern wax-coated and self-countersinking screws which cut their own way through softwood building timbers avoiding the need for clearance or pilot holes. Instead of a keyless chuck, '''Impact Drivers''' have a collet which accepts | '''Impact Screwdrivers''' are popular with [https://en.wikipedia.org/wiki/Joiner '''Joiners'''] working on construction sites with long, modern wax-coated and self-countersinking screws which cut their own way through softwood building timbers avoiding the need for clearance or pilot holes. Instead of a keyless chuck, '''Impact Drivers''' have a collet which accepts [https://en.wikipedia.org/wiki/List_of_screw_drives '''interchangeable bits'''] with hexagonal shanks. | ||
Latest revision as of 14:06, 27 December 2016
Description
Power Drills with speed and Torque Control can be very effective also as powered screwdrivers but, more conveniently, a separate powered screwdriver can speed up working by avoiding the need constantly to change bits when drilling a series holes to receive screws. Such Drill Drivers are excellent when a constant Torque for precision work is required.
Features and Applications
The effectiveness of Powered Screwdrivers is enhanced if a hammer-type action is applied as the screw is turned. This is the case with an Impact Screwdriver but note that the hammer-action acts in the direction of rotation to increase torque and not along the axis of the chuck as is the case with a Hammer Drill.
Impact Screwdrivers are popular with Joiners working on construction sites with long, modern wax-coated and self-countersinking screws which cut their own way through softwood building timbers avoiding the need for clearance or pilot holes. Instead of a keyless chuck, Impact Drivers have a collet which accepts interchangeable bits with hexagonal shanks.
