日本 HIQ PARTS 圓棒中心鑽孔定位輔助器 CEND2050
HIQ PARTS Center Driller
A jig for making straight holes in the core (end face) and sides of a plastic round bar.
Only for 1 mm diameter drill blades.
If you want to make a hole smaller than 1 mm in diameter, use a drill blade with a 1 mm shaft and a small diameter blade at the tip (however, a total length of 18 mm or more is required for core and end face machining).
https://youtu.be/VHs8Dq7FPQs