
These countersinks are cheap in price and quality. I have been using WL Fuller products for over 40 years and am always looking for products similar to Fuller at a lower price. This is not the product. In my trade you learn very quickly what is good and what is not. I realized very quickly that it was rubbish. I use countersink bits all day, they were bent, crooked and the first 1/8 inch of each bit was broken off at the tip of each bit.