Review on ZokMok Carbide Keyhole Diameter Hardened: Unbeatable Precision and Durability by Matthew Miles

I only needed this for a quick project so figured I might go with the cheap end. I only made a few cuts and the 3/8" bit came loose. Luckily due to the location of the notch the head was thrown backwards and got stuck in the tree instead of flying out and hitting me. Recommend something better.