Tool structure

A tool component of a tool structure having a longitudinal axis, the tool component selected from the group consisting of a tool for machining, an adapter for a tool, and a receptacle for a tool, the tool component comprising:

• an end section having a cross section being symmetrical perpendicularly to the longitudinal axis and generally oval with respect to a first axis of symmetry in a direction of a maximum height and a second axis of symmetry in a direction of a maximum width, said maximum height being greater than said maximum width, said end section, as viewed in said cross section, has four spaced-apart surface sections, functioning as contact surfaces, running approximately in the direction of the longitudinal axis and being disposed symmetrically with respect to a circumference of said end section such that a center point of a straight connecting line of starting and end points of a respective surface section is at a normal distance b1 from said first axis of symmetry and at a normal distance h1 from said second axis of symmetry, said normal distance h1 being greater than said normal distance b1.

A tool component of a tool structure having a longitudinal axis, the tool component selected from the group consisting of a tool for machining, an adapter for a tool, and a receptacle for a tool, the tool component comprising:

• a part having a recess formed therein, said recess having a cross section being symmetrical perpendicularly to the longitudinal axis and generally oval with respect to a first axis of symmetry in a direction of a maximum height and a second axis of symmetry in a direction of a maximum width, said maximum height being greater than said maximum width, said recess, as viewed in said cross section, has four spaced-apart surface sections, functioning as contact surfaces, running approximately in a direction of the longitudinal axis and are disposed symmetrically with respect to a circumference of said recess such that a center point of a straight connecting line of starting and end points of a respective surface section is at a normal distance b1 from said first axis of symmetry and at a normal distance h1 from said second axis of symmetry, said normal distance h1 being greater than said normal distance b1.