Screwdrivers

- Invention of the late Middle Ages
- Origin: Europe
- Early screwdriving innovator: Leonardo da Vinci
- Phillips screwdriver debut: 1934
- Phillips screwdriver inventor: Henry F. Phillips
- Phillips head screwdrivers fit with screws that have a crosshead design; that is, the screw's groove is shaped like a plus sign
- Flathead screwdrivers connect with screws that are simply slotted like a minus sign

The screwdriver's main purpose is to connect with and tighten or loosen fastening screws. Usually the design consists of a molded plastic handle and a thin metal shaft with a special head that fits each particular screw type. The two most widely used screwdrivers are the flathead and the Phillips head screwdrivers.
Other Popular Screwdriver Types
1. Robertson (screw groove is square-shaped)
2. Hex (screw groove is hexagonal)
3. Torx (screw groove is star-shaped, as if two triangles were placed on top of one another)

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Screwdrivers on Amazon
- Black & Decker 9078 3.6-Volt Ni-Cad Cordless Screwdriver - $38.68
  
  The Black & Decker 9078 Pivot-Driver is 3-position 3.6-volt pivoting screwdriver. Its handle locks in 3-positions for constricted locations and tight areas. The 24-position clutch ...
  
  Amazon
- Stanley 62-502 11-Piece FatMax Screwdriver Set - $33.32
  
  11 Piece, Prodriver Screwdriver Set, High Performance Screwdrivers, Consists Of 1 Each: #0 Point x 3 Phillips,#1 Point x 4 Phillips, #2 Point x 4 Phillips, #2 Point Stubby Phillips...
  
  Amazon
- Silverhill Triwing Y Screwdriver for Nintendo Products Including Wii, Ds Lite, Ds, Gba, Wiimote, Nunchuck, Sensor Bar, Etc - $7.99
  
  From Silverhill comes another high quality tool for the value market. Now available for your delight and convenience, the hard to find Nintendo Special Y screwdriver. Requi...
  
  Amazon
- Garmin - Security screwdriver - $6.05
  
  Marketing description is not available.
  
  Amazon
- Denali 22-Piece Screwdriver Set, Cushion Grip - $29.99
  
  All screwdrivers in this do-it-all set have CR-V shafts and magnetic black tips that keep the screw placed on the tip. A cushion grip gives you superior comfort and absolute contro...
  
  Amazon
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Screwdrivers Questions

Does anybody know where I can get a theft proof screwdriver? 2 Answers

Virtually all of these screwdrivers can be had at a reasonably "technical" computer store. If you have a microcenter near you, http://www.microcenter.com their... read more

Doctor Who : In the visitation episodes Terileptil destroys, the doctors sonic screwdriver; how does the sonic screwdriver return? 1 Answer

Doctor Who has never been that strict about continuity. Apparently the sonic screwdriver was retired in The Visitation as it was felt that it was getting over-u... read more

Thinprints .print server or Tricerats Screwdrivers, which is best? 2 Answers

From doing some reading online it seems that Screwdrivers might be your better solution for remote desktop print engine. The point that seems to be stressed on ... read more

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