Makers and machinists, here's a versatile blank for your shop. This is a CoCud square tool bit measuring 4mm by 12mm by 200mm long (that's about 0.16\ x 0.47\ x 8\). It's made from High Speed Steel (HSS) grade 4241, hardened to HRC60-62, so it's tough, wear-resistant, and holds an edge well. It's a parallel-design blank, meaning the cutting edge width is consistent along its length. You can grind or shape it for turning, milling, engraving, punching, or drilling on your lathe or milling machine. It works on a bunch of materials: cast iron, A3/45 carbon steel, copper, aluminum, die steel, and even stainless steel. Whether you're making custom cutting tools, need a replacement bit, or just want a reliable blank on hand, this single-piece kit has you covered. Always remember proper grinding and safety gear when shaping your tools!
