Set of 29 heavy duty jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments. Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials. Gold oxide finish lubricates the drill bit and provides wear resistance. Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging. Meets ANSI and NAS 907 specifications. Made in the USA.
Using these jobber bits, our team found that they were able to easily drill through tough materials with precision and efficiency. The cobalt construction allowed for durability and extended use without wearing down. The only downside was that they were a bit pricier than other options, but the performance and long-lasting quality make them worth the investment. Highly recommend for any industrial drilling needs.
Pros
Durable cobalt construction provides superior heat resistance for longer tool life.
These bits are not the best. I clicked 7 bits in the first year. I've been drilling for over twenty years. The only thing I drill with it is aluminum sheets. I might as well have bought her on port charters and saved $170.
These drill bits are accurate, durable and dependable. I have enjoyed using Cleveland products for many years. I own/run a CNC shop and the new milling machine required another full set of drills (otherwise I swap out dull drills on a case by case basis - often weekly, sometimes daily). Received the kit this morning and they are already in the store producing clean well formed chips. I rarely post reviews, but I was confused by a previous review that she had downvoted. I assume these exercisesβ¦