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Drill sharpener

  • US 20060003676A1
  • Filed: 09/26/2003
  • Published: 01/05/2006
  • Est. Priority Date: 09/27/2002
  • Status: Active Grant
First Claim
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1. A drill sharpener comprising a housing which encloses a rotatable grinding wheel assembly, the housing having a point-splitting port to facilitate a point-splitting operation upon a multi-flute drill bit to remove material between said flutes, the port comprising a guide feature that maintains a longitudinal length of the bit along a predetermined axial line and at a predetermined angular orientation with respect to said line as said material is removed by the grinding wheel assembly, and wherein the point-splitting operation is carried out by inserting the bit into the port and using the guide feature to maintain the bit in a first orientation while removing a first portion of said material from the bit, removing the bit from the port, and reinserting the bit into the port and using the guide feature to maintain the bit in a second orientation that is 180 degrees opposite the first orientation with respect to the axial line while removing a second portion of said material from the bit.

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