NACHI/Fujikoshi] 4-piece set of HSS SKH9 high-speed steel drill bits for metalworking, tools, DIY

This is a set of 4 drill bits (straight shank) made by the trusted domestic manufacturer NACHI (Fujikoshi).
Based on the markings, the material appears to be high-speed steel (HSS / SKH9), which is suitable for metalworking.
How about using them for drilling holes in DIY projects, motorcycle/car maintenance, or crafting?

[Set Contents & Sizes]
- Total of 4 bits
- Sizes identifiable from the markings in the photos: 10.0mm / 8.0mm / 6.4mm
(※The marking on one other bit is difficult to read, but please check the photos for a comparison of the diameters. It is likely around 7-8mm.)
- Overall length: Approximately 9cm - 13cm (Please check the photos with the measuring tape)
[Product Condition]
- This is a used item with signs of age and use, including rust, discoloration, and scratches overall.
- Please carefully check the condition of the cutting edges in the photos.
- Although there is rust, as it is high-speed steel from a professional manufacturer, it can still be used as is, or perhaps with a little sharpening.
[Shipping]
Will be wrapped in a plastic bag, etc., and shipped using cushioning material via anonymous shipping (Nekoposu or Yu-Packet).

We are looking for buyers who understand used tools and stored items as practical items!
Please refrain from purchasing if you are concerned about minor details.

Thank you for looking!

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