TOOL HOLDER AND TOOL USED FOR DRILLING AND/OR IMPACT TOOL MACHINE, AND DRILLING AND/OR IMPACT TOOL MACHINE

摘要

PROBLEM TO BE SOLVED: To fit a tool correctly into a tool mounting part by providing a positioning opening with a section placed in front or in the rear on the tool side in relation to a conical part, and forming the section as a polygonal hole. ;SOLUTION: A positioning opening 4a formed to corotate a tool is formed with a section 6 placed in front of a tool in relation to a conical part 5. This section 6 is axially parallel to the longitudinal axis 30 of a driving spindle 3 and has a polygonal hole 6a. The polygonal hole 6a can be formed as a polygon forming part or a spline shaft forming part, for instance. On the machine side, an annular cutout 8 is provided behind the conical part 5 in the positioning opening 4a, and a seal member 7 is fitted into the cutout 8.;COPYRIGHT: (C)1997,JPO