29-Piece Twist Drill Bit Set 5% Cobalt M35 Jobber Length Fully Ground for Hardened Steel Metal Cast Iron Sizes 1/16“ to 1/2”; JBS35G10R029

I bought this set to use for some home reno (installing curtain rods and drilling holes for hang paintings), had every bit I needed and easily punched through the drywall. Worked well even if with a cheap electric drill. For the price and performance, I think its a good for kit for work in and around the house.

Quality product and the case is very useful, the reason for the 4 stars is a couple of them broke right off the bat, and i was using them exactly how they should be used, no extra pressure or wobble, but inwas able to sharpen the edges with my grinding wheel and they work perfectly again.

Best rated drill bit I've ever had they were expensive and I was skeptical about it but I'll tell you right now you pay for what you get and they are the best I've ever had and I've been using drill bits for at least 30 years they drill and keep Grill and not only once they and they don't get Dole

I bought these to drill holes in my semi tractor's frame. I burned up two sets of drill bits before I bought these bits. They cut through the steel like butter. Recommendation for others is to keep the drill's rpms low and use cutting oil.

Even though the bits aren't bad (so far as I can tell) for the price, I can't give this better than 3 stars because of the way it arrived. The cheap metal case was bent badly with the plastic insert broken. The bits were all lose in the envelope because of the case being bent and one never even made it. Must have escaped through a hole in the plastic bag.

Some of my drill bit sets have broken bits or are too small and I wanted some hardened steel, so I bought this set. I needed to enlarge my RC wheel center hole to 7/8" to fit my car. I also had to drill some holes in my RC for fender flairs and exocage. My only complaint would be, I had to drill my RC body in steps, as the larger bits tend to walk. I don't think it's because of these bits, it's probably due to the smooth plastic body. I know all of my holes have been on plastic, but they seem very sharp. I would definitely recommend this product.

I made my purchase based on the feedback given by other users. The first three bits I used went dull in a very short time. I am using them to drill through body metal on a '65 vintage car. In my opinion, the bits should have stayed sharp a lot longer. However, they were delivered promptly and the packaging is, and was in excellent condition.

These bits are great. Very strong unlike tungsten bits. Will drill through anything.

They do not appear to heat up, break, or become dull in metal. A bit spendy, may be worth it.

Not as advertised

percer seulement 1 troue ca bien été. j'ai hâte d'essayer cela dans un frame selon mon expérience cela vas bien aller.

I use these drill bits for drilling in metal for tapping threads. After several use the bit remains sharp and it cuts the metal much easier than most brands I used in the past. Very good product

Supposed to be 29 x 3 flat drill bits. Only 9 were 3 flat. Not impressed.