Milling tool comprises shaft with forked arms and easily replaceable knurling wheel fitting on rolling pin through hollow pressure member containing spring and ball pretensioned into ratchet of wheel

摘要

The milling tool comprises a shaft with forked arms (13) supporting a rolling pin (15) fitted with a rotatable knurling wheel (20). The pin (15) is fixable in aligned bores in the shaft arms by a pressure member (16) which is hollow and contains a compression spring (16b) and at its end facing the pin a ball (16a) which is pressed by the pretensioned spring into the ratchet of the pin. The pin is made of hard metal coated with titanium carbide. The pressure member is a hollow screw with screw slot opposite the ball.