U311B Gang rotary tool driving device (1-drilling tool, 10-mm shift, arbor spindle)
This device is dedicated to probe machining. T24 (for grooving on end-face of workpiece with cutter of Ø20 mm) and T25 (for drilling on outer diameter of workpiece after stopping the spindle) are provided. T24 has a feature that can obtain an accurate run-out of tool since it has a tool mounting section of Ø6h5. If the machining does not need a tool on T24, be sure to mount a dummy tool to protect the mounting surface from cracking. Machine type: II, VI Cutter dia. (T24): Ø 20 mm [0.7874"] (Inner dia. Ø 6 mm [0.2362"], Cutter thickness: 2 mm [0.0787"]) Chuck type (T25): ER8, AR8 Max. chuck dia. (T25): Ø 5 mm [Ø 0.1969"] Spindle speed: 100 ~ 8000 min^-1 Spindle rotation direction: Direction shown by the arrow in the figure above when a forward rotation command with D argument (negative value) is specified.