Patent ID: 8826786

Claim:
A cutting tool ( 10 ) having a fluid delivery system ( 13 ), comprising a tool body ( 12 ) and a fluid delivery head ( 14 ) coupled thereto by a solid coupling member ( 16 ) having a continuous male thread ( 32 ), the tool body ( 12 ) comprising a body coupling bore ( 42 ), the fluid delivery head ( 14 ) comprising a head coupling bore ( 70 ) communicating with the body coupling bore ( 42 ), at least one of the body coupling bore ( 42 ) and head coupling bore ( 70 ) comprising a circumferentially interrupted female thread ( 52 ) having a longitudinal thread axis (C) and a radial outer thread boundary ( 56 ), wherein the or each coupling bore comprising a female thread ( 52 ) is in communication with a thread passage ( 58 ) which extends along the thread axis (C) and interrupts the female thread ( 52 ) in the circumferential direction, and in an axial cross section of the female thread ( 52 ), the thread passage ( 58 ) extends both inside and outside the radial outer thread boundary ( 56 ).