For the machinists and DIYers out there, here's a solid workhorse: the YG-1 High-Speed Steel (HSS) Square Nose End Mill. This one's a long-length style, which means it's got more cutting edge than a standard end mill – great for reaching deeper into your workpiece. The specs: it's got a 1-inch cutting diameter and a 1-inch shank diameter (Weldon shank), with an overall length of 6.5 inches. It has four flutes, which is a sweet spot for a nicer finish compared to fewer flutes, and a 30-degree helix angle for general-purpose milling. Important note: this is a non-center-cutting design, so it's perfect for peripheral milling (machining the sides of a part) but you can't plunge straight down with it like a drill bit. It's made from uncoated (bright finish) HSS, so it's versatile for a bunch of different materials. Just remember, because it's a long length, you should reduce your feed rate by about half. If you need a reliable, general-purpose end mill for your mill or machining center, this YG-1 tool is a great choice.
