FIELD: methods and devices for metal processing.
SUBSTANCE: invention relates to metal working and can be used in holder for a machining tool installed in a machine spindle. Tool holder (1) comprises receiving body (3) having receiving opening (5) for tool shaft (6) of a tool, central through hole (8) connected to receiving opening (5) and first fluid supply structure (22, 33, 35) for supplying a cooling lubricant to the tool, wherein in receiving body (3) there is second fluid supply structure (23, 34, 41) separated from first fluid supply structure (22, 33, 35) for supplying a cooling lubricant to the tool separately from first fluid supply structure (22, 33, 35), wherein in said hole (8) inside receiving body (3) from the side of receiving opening (5) there is axially displaceable stop member (17) in the form of a sleeve with axial through hole (22) and at least one through hole (23).
EFFECT: use of the invention allows improving the process of supplying cooling lubricants to the tool.
15 cl, 18 dwg
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