Improvements relating to cutting tools for mining machines

摘要

There is disclosed herein a tool system (10) for a mining machine. The tool system (10) comprises a tool holder (12) and a tool (14). The tool (14) has a cutting end (16) for winning mineral from an ore body and a tapered mounting end comprising a shank (18) 5 adapted for engagement in a correspondingly tapered socket (20) of the tool holder (12) for securing the tool (14) to the tool holder (12). A laterally extending flange (14d) is provided between the mounting end (18) and the cutting end (16) of the tool (14). The flange (14d) is engageable by a lever to facilitate removal of the tool (14) from the tool holder (12). A line of weakness (44) is provided in the tool (14) and defines a 10 predetermined failure point. The line of weakness (44) is positioned on the cutting end side of the flange (14d), such that the tool (14) is adapted to fail at a position that leaves the flange (14d) intact.