| 摘要 |
A rotary cutting tool (10, 110) comprising a cutting head (16, 116), a screw member (18, 118) and a tool shank (20). The cutting head (16, 116) has an axially directed through bore (27, 127) with locking wings (30, 130) protruding from the bore surface (28, 128). Each locking wing having a slopi ng locking surface (34, 134) and stopper (36, 136) with a stop surface (40, 140 ). The screw member (18, 118) has outwardly radially protruding clamping wings (66, 166) each having a sloping clamping surface (70, 170), and an associate d side abutment surface (71'', 175''). The screw member is in threaded engagement with the tool shank, with the clamping wings and locking wings aligned in pairs with the locking and clamping surfaces (34, 70; 134, 170) o f each pair in abutment, and with each stop surface (40, 140) in abutment with a given side abutment surface (71'', 175''). |
