Patent ID: 6942437

Claim:
A milling cutting tool assembly comprising: an adapter having an adapter central axis and comprising: adapter first and second sides; a centrally located male locating member projecting from the adapter first side and provided with a threaded bore in a central portion thereof; and a plurality of circumferentially spaced-apart drive pins projecting from the adapter first side; and a cutter body having a cutter central axis, and comprising: cutter body first and second sides; a centrally located female locating member formed in the cutter body first side; a plurality of circumferentially spaced-apart drive grooves formed in the cutter body first side, each drive groove having an insertion portion connected to a retaining portion; and a throughbore extending along the cutter central axis and communicating with the female locating member; and a bolt occupying the throughbore; wherein: the assembly is adjustable from a first position in which the adapter and the cutter body are separated from one another, to a second position in which the male locating member is nested in the female locating member and at least two drive pins are positioned in a corresponding number of respective drive grooves' insertion portions; the assembly is further adjustable from said second position to a third position in which the at least two drive pins are positioned in their respective drive grooves' retaining portions, upon rotation of the cutter body relative to the adapter; and when the assembly is in the third position, the cutter body is securable to the adapter upon insertion of the bolt into the threaded bore of the male locating member, and without tightening the drive pins in the retaining portions of the grooves.