u/IamChax

I was given a bunch of tools a few years ago and found these drill bits among them. Not sure what language, but am assuming Japanese. All I was able to find is that the HSS AL represents 'High Speed Steel containing Aluminum'. Would just like to know what these would be used for, do I need any kind of special tool to use them, are they valuable, and maybe information on the brand. Thank y'all and really appreciate such a specific, large community for my curiosity!

This is an old 1950s radio/record player. It worked beforbistarted messing with it but sounded horrible so I decided to take it out and use it as furniture. I want to keep it somewhat together in case someone else down the road wants to restore it. My question is whether it is best to disconnect it at the red circle or at the green circle. The red circle is beyond me and looks as though I would have to break some soldering. The green circle would just be me cutting the wires, I would also like to know the rest place to do so or if my green circle is a fine spot.