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The brass/silversteel rods you can buy here start at 1.5mm and 2.0mm which work fine with the 1.5mm and 2.0mm drill bits.

You would need a special size drill bit if you bought 1/16 rods from...

There are bits especially made for wood? Hehehe I didn't know, I've been using drill bits for steel as well. They work great for scales but I noticed when drilling 1.5cm thick wood the small drill...