Tool holder and a parting and grooving tool for an indexable turret, and a machining method therefor

A tool holder and a parting and grooving tool arranged for being mounted on an indexable turret having a plurality of tool stations, wherein adjacent tool stations having a predetermined angular spacing, and wherein the turret is movable in a direction towards the tool station, which is along the X axis direction, the tool holder comprising

• a mounting portion, and
• a projected portion, wherein the mounting portion includes a flat surface defining an interface plane, wherein the projected portion includes a recess for holding the parting and grooving tool, wherein the projected portion and the mounting portion are connected to each other;
• and the parting and grooving tool comprising
• a parting and grooving blade, the blade including a cutting portion, and
• a clamping portion, wherein the cutting portion includes a parting and grooving insert having a cutting edge and a rake face, wherein the clamping portion includes a top and a rear end surface, wherein the parting and grooving tool is mountable in the recess such that a distance from the interface plane to the rear end surface of the parting and grooving tool is greater than a distance from the interface plane to the cutting portion of the parting and grooving tool, wherein the parting and grooving tool is elongated along a grooving tool axis, which is in a cutting direction along the Y axis direction, and wherein the top surface of the blade and the rake face are facing in a same or substantially same direction.