Rennie Tools - 25 Piece Cobalt Drill Bit Set Sizes 1-13mm In Metal Case

Having tackled a few stainless steel projects recently, I can say these Rennie Tool bits are a real lifesaver. Standard HSS bits just don't cut it for hardened metals, but the 5% cobalt content in this M35 HSS set makes a noticeable difference. The 4-10mm sizes are a versatile selection for general-purpose use, especially for metalworking tasks. The 135° split point tips are a feature I particularly appreciate; they start drilling cleanly and accurately without the need for pre-punching, which saves a lot of time and effort. For the price, the performance is excellent. I’ve used these bits on stainless steel, cast iron, and thick aluminum, and they've held up and stayed sharp far longer than other similarly priced sets. While they might not last as long as premium-tier options for industrial use, they are perfect for serious DIYers and tradespeople who need reliable bits without spending a fortune. The included plastic case is also a nice touch. It's not the most rugged case, but it does the job of keeping the bits organised and protected when not in use. Overall, if you're looking for a cost-effective cobalt drill bit set that performs brilliantly on hard metals, this is an outstanding choice. It offers genuinely high performance for a very decent price.

quality product. Delivered the next day at a reasonable price

These seemed to do a good job of going through some thick steel. It took a while but much better than even titanium bits. I like this set alot but after using it I couldn't put the drill bits back because my drill chuck caused a bump on the drill bit and the tolerance on the holes is pretty tight. So the case is barely useful to me right now. Overall though a good purchase

Good drills at a good price. Would buy again

Works pretty well and well priced

Well presented in useful sizes. My usual drills gave up on the particular job on which I was working. These were through in a minute. The order came through quickly. A very good price for the result.

The 3 smaller drill bits broke immediately trying to drill out a countersunk hex bolts, the other 2 were blunt in a couple of minutes.

Really sharp used to drill 30 holes in 12mm steel joist.

■ Alles Ok ■