10Pcs PCB Print Circuit Board Carbide Micro Drill Bits 0.4mm

These work good but very fragile

The package I received had already 3 broken bits. The remaining 7 proved to be extremely brittle, but I was able to use them for the project I needed them for.

This is just long enough to go through the nozzle and not much more. You probably still need acupuncture needles to clean your hot end of a clog. These are fragile and look like they would break easily so be careful. Your not running a RotoRotor through there.They are all straight and packed in a nice case.

Fast shippingExactly as described