Abstract: A tool holder is disclosed for holding a tool shaft of a tool, the tool holder having a receiving bore for receiving the tool shaft in a predetermined axial position, having a seal at an inner end of the receiving bore, and further comprising a coolant supply from a machine-side into a bore of the tool shaft, wherein the seal has an at least partially elastically deformable sealing element.

Abstract: A tool holder is disclosed for holding a tool shaft of a tool, the tool holder having a receiving bore for receiving the tool shaft in a predetermined axial position, having a seal at an inner end of the receiving bore, and further comprising a coolant supply from a machine-side into a bore of the tool shaft, wherein the seal has an at least partially elastically deformable sealing element.

Abstract: A chuck for a tool having an inner coolant channel, comprising a chuck body having a front part with an inner cone; an externally conical collet having a plurality of slots in a longitudinal direction thereof and engaging in the inner cone of the front part of the chuck body, a length adjusting means for the tool arranged so that the tool is bearable via an end surface against the length adjusting means, a coolant supply tube provided with a coolant supply channel extending into the length adjusting means so that the coolant supply tube discharges into the length adjusting means, a lock nut having a sleeve section extending over a front part of the chuck body and retained on the latter in an axially displaceable manner via a threaded connection and also connected to the collar in an axially displaceable manner, and at least one sealing means provided in a contact region selected from the group consisting of a contact region of the coolant supply channel, a contact region of the threaded connection, and a cont

Abstract: The present invention relates to a quick-change insert (10) for tools (11), in particular thread drills (12), for minimal lubrication, that is designed for detachable installation in a chuck (30) provided with a central lubricant channel (32) and for introducing the lubricant as an aerosol from the lubricant channel (32) into the rear end of a longitudinal bore (14) of an inserted tool (11). A sealing body (40) provided with a central passage (41) is located in a rear receptacle (25) of the insert body (17) such that, when the tool (11) is inserted and installed in the chuck (30), it connects the lubricant channel (32) and the longitudinal bore (14) of the tool (11) with each other in an at least substantially leakproof manner.

Abstract: The present invention relates to a quick-change insert (10) for tools (11), in particular thread drills (12), for minimal lubrication, that is designed for detachable installation in a chuck (30) provided with a central lubricant channel (32) and for introducing the lubricant as an aerosol from the lubricant channel (32) into the rear end of a longitudinal bore (14) of an inserted tool (11). A sealing body (40) provided with a central passage (41) is located in a rear receptacle (25) of the insert body (17) such that, when the tool (11) is inserted and installed in the chuck (30), it connects the lubricant channel (32) and the longitudinal bore (14) of the tool (11) with each other in an at least substantially leakproof manner.

Abstract: A tool holder, particularly a fast exchange chuck preferably for thread cutting, thread shaping and the like has a receptacle having one end receivable in a machine spindle, a machine tool receptacle and the like, and another opposite end provided with a head having a coaxial cylindrical head opening, a housing received and guided in the cylindrical head opening non-rotatably but displaceably in a longitudinal direction and provided with a coaxial cylindrical housing opening, a fast exchange insert insertable in the housing opening a torque-transmitting unit for transmitting torque between the head and the housing and including a head longitudinal groove provided in the head, a housing longitudinal groove provided in the housing, and at least one drive body partially received in each of the longitudinal grooves so as to transmit torque between the head and the housing and to roll during a relative displacement between said head and said housing.