GH-10 Tungsten Steel Grinding Heads

I was a bit skeptical about tungsten steel heads, but these grind efficiently with hardly any dust flying around. The double-grooved design really does make a difference, and the set of 10 gives plenty of variety.

The double-grooved design really does cut down on dust compared to my old bits. They feel solid and have held up well after a few sessions, though the set could use a case for storage.