لقمة أداة، أداة خراطة كروية صغيرة ونصف قطر، HSS

The 3/16" diameter fits perfectly into my existing tool holder, and the HSS bit cuts cleanly on brass without any chatter. Nice to have a precise replacement that doesn't need modification.

Took a while to find a replacement bit this precise for the small ball turning tool, and the 3/16" diameter is exactly what I needed. Cut a few radius grooves in mild steel and it held its edge nicely without any chattering.

The 3/4" length fits the holder perfectly with no overhang, and the HSS edge took a nice sharp cut on some mild steel right away. I've used it for a few small radius jobs now, and it holds its edge better than I expected for the price.