Chip-removing tool for deburring bores

A chip-removing tool, for deburring bores, comprising:

• a shaft,
• a cutting head with at least one cutting wedge on the circumference, said cutting wedge being paired with a flute and having a cutter, which extends in an axial direction at least in some sections, carries out a cutting process on the basis of a relative movement between tool and workpiece, and lies on a virtual cylindrical rotational surface with a diameter that corresponds to a nominal diameter of the chip-removing tool, and at least one cutting wedge- and flute-free surface region,
• at least one fluid channel, which is closed on the cutting head side and which extends through the shaft and into the cutting head, and
• at least one puncture channel, which starts from the fluid channel and comprises an opening that lies in the cutting wedge- and flute-free surface region,
• the opening that lies in the cutting wedge- and flute-free surface region in a dynamic pressure active surface, which is radially recessed relative to the virtual rotational surface of the cutting head, and which is larger than a flow cross sectional surface of the at least one puncture channel at the opening.