Patent ID: 7125208

Claim:
A machine tool, having a spindle with a tool receptacle for receiving a tool holder having a coolant tube for receiving a cooling lubricant, said tool holder being chucked into the receptacle during operation of said machine tool, said spindle having an interior, a first passage being arranged in said interior, said first passage having an outlet opening that opens out inside said tool receptacle, said outlet opening receiving said coolant tube of said tool holder when said tool holder is chucked into said tool receptacle, said first passage including a continuous inner tube having a first and a second end, said first end being connected to a connection for a coolant source and said second end being arranged for being connected to the coolant tube of the tool holder when the tool holder is chucked into the tool receptacle, wherein an annular seal is provided for connecting said inner tube to said coolant tube when said tool holder is chucked into said tool receptacle, and wherein said coolant tube has a tubular inner insert for fixing said annular seal at said coolant tube.