I wonder how long the cutter will last. They have scooped corners for rounding the sharp edges of your workpiece. Carbide Corner Radius End Mill Milling Cutter Tools Corner Rounding End Mill 60°, 82°, 90° drill point: Corner rounding end mill speed and feed . As you would for any feeds and speeds calculation, setup your machine and material first. De micro cc end mills Square, radius, ball nose end mill: Roughing end mills, also known as hog mills, are used to quickly remove large amounts of material during heavier operations. They may be increased or decreased depending on machine condition, depth of cut, finish required, coolant, etc. All speeds and feeds listed are provided for reference only. All speed and feed data are suggested starting points. Quick release drill bits a radial cutting edge planes the wood from the base of the hole metal bit. Feed & speed recommendations for radstar corner rounding inserts start at a higher speed and a lower feed to avoid...