Cutting tool and cutting insert

A cutting tool comprising:

• a carrier tool which has a recess for receiving a cutting insert having a clamping depression on a rake face thereof,
• a clamping finger for holding the cutting insert in the tool, the clamping finger having a lug,
• a clamping bolt for securing the clamping finger on the carrier tool in such a manner that when the clamping bolt is tightened the clamping finger pulls the cutting insert into the recess;
• and
• a sickle-shaped engagement element for engaging into the clamping depression of the cutting insert being arranged on the lug;
• wherein the clamping bolt has clamping head which overhangs with respect to its shank, the clamping head is seated on a locating surface of the clamping finger, which locating surface is angled with respect to the axis of the clamping bolt,
• wherein the lug of the clamping finger has a clamping surface for bearing on the rake face of the cutting insert;
• wherein a first bore is arranged in a region of a chamfer;
• wherein in the clamping finger a second bore is arranged at an angle between 0° and 90° to the first bore;
• and
• wherein a compression spring is arranged with one end in the first bore and with the other end in the second bore, and
• wherein the region of the angled locating surface which is a highest region with regard to the axis of the clamping bolt is the one which, with respect to other regions of the locating surface (6), is located closest to the lug of the clamping finger.

A cutting tool comprising:

• a carrier tool which has a recess for receiving a cutting insert having a clamping depression on a rake face thereof,
• a clamping finger for holding the cutting insert in the tool, the clamping finger having a lug,
• a clamping bolt for securing the clamping finger on the carrier tool in such a manner that when the clamping bolt is tightened the clamping finger pulls the cutting insert into the recess;
• and
• a sickle-shaped engagement element for engaging into the clamping depression of the cutting insert being arranged on the lug;
• wherein the clamping bolt has clamping head which overhangs with respect to its shank, wherein the shank and the clamping head are guided in an oblong hole of the clamping finger and wherein the clamping head is seated on a locating surface of the clamping finger, which locating surface is angled with respect to the axis of the clamping bolt;
• wherein the region of the angled locating surface which is a highest region with regard to the axis of the clamping bolt is the one which, with respect to other regions of the locating surface, is located closest to the lug of the clamping finger,
• wherein the lug of the clamping finger has a clamping surface for bearing on the rake face of the cutting insert.

A cutting tool comprising:

• a carrier tool which has a recess for receiving a cutting insert having a clamping depression on a rake face thereof,
• a clamping finger for holding the cutting insert in the tool, the clamping finger having a lug,
• a clamping bolt for securing the clamping finger on the carrier tool in such a manner that when the clamping bolt is tightened the clamping finger pulls the cutting insert into the recess;
• and
• a sickle-shaped engagement element for engaging into the clamping depression of the cutting insert being arranged on the lug;
• wherein the clamping bolt has clamping head which overhangs with respect to its shank, the clamping head is seated on a locating surface of the clamping finger, which locating surface is angled with respect to the axis of the clamping bolt, and
• wherein the lug of the clamping finger has a clamping surface for bearing on the rake face of the cutting insert, and wherein the region of the angled locating surface which is a highest region with regard to the axis of the clamping bolt is the one which, with respect to other regions of the locating surface (6), is located closest to the lug of the clamping finger.