Patents Assigned to ICS Cutting Tools, Inc.
  • Patent number: 6443674
    Abstract: A self-centering drill comprising: (a) a shank, a body, and a cutting end, all formed integrally in the drill; (b) the body interposed between the shank and the cutting end, the body having a pair of helical flutes and a corresponding pair of helical lands; (c) the cutting end including a substantially flat bottom section having primary cutting lips which are relief ground, the primary cutting lips forming a primary point angle, and a helical crown having a helical crown point tip that extends from the bottom section, the helical crown point tip having self-centering cutting lips; (d) wherein the outside edges of the bottom section are chamfered to form secondary cutting lips which are radially relieved, the secondary cutting lips forming a secondary point angle, (e) the primary point angle being greater than the secondary point angle.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: September 3, 2002
    Assignee: ICS Cutting Tools, Inc.
    Inventor: John Robert Jaconi