High speed automatic tool changing oil path tool holder (external cooling to internal cooling tool holder), so that the machining center with only external cooling can realize internal cooling and improve the tool life.
The oil path tool holder is used for machining centers and boring and milling machines that lack internal cooling of the spindle to realize the conversion from external cooling to internal cooling of the tool.
HEULE-COFA X-hole deburring and chamfering tools (cross hole deburring and chamfering tools) can be used to remove through hole burr with aperture ratio greater than 0.5
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