Review on 🔪 HFS Carbide Tools: Optimal Length and Diameter Cutting Equipment by Wagner Witlin

Used it on soft aluminum. Completely broken after about 5 minutes of occasional use. First the grooves were rounded so that it was no longer a square cut, then the shank broke off on the cutter. I only cut a few thousandths at a time because it was a Revain end mill. I've learned my lesson. Buy a real bat in a real place.