Patent ID: 7347650

Claim:
A cutting tool securing a cutting insert and a shim by the action of a screw, comprising: a tool holder having an opening that includes: a pocket that has a base wall and at least one side wall for receiving the insert, a first hole on the base wall of the pocket, a second hole, positioned next to the pocket, containing the screw, and a passage, having an enlarged section above the base wall providing an opening between the pocket and the second hole, and a narrowed section under the base wall providing an opening between the first hole and the second hole, and a locking pin disposed to secure the cutting insert including: a horizontal arm having an enlarged portion in a half bushing shape located and trapped by the screw into the second hole of the tool holder, and a reduced portion, housed into the narrowed section of the holder's passage, making the joint between the enlarged portion and the vertical arm, a vertical arm aligned with the tool holder's first hole, having:. a cylindrical portion rounded at the left lower side to enable the shim to be positioned in its place by passing the shim's hole over two small rounded surfaces disposed on both sides of horizontal arm, a collar to retain the shim, and a clamping head, wherein the locking pin is mainly J-shaped and is located into the tool holder's opening which is dimensioned such that the tool holder contains, retains and guides the locking pin as it is drawn down or up in a mainly translation motion by the action of the screw.