| 摘要 |
The present invention relates to a tool head (46) and tool (10) for mining of rock material preferably by means of undercutting. The tool head (46) comprises a holder and a number of tools (10) provided at the periphery of the holder. Each tool (10) comprises a roller cutter (12) rotatably journalled via bearing means to an attachment. Each tool (10) and the holder (38) comprise means (37, 41,54) for clamping provided to function in a direction (B) that forms a first acute angle with the front side (51) of the holder. |
