Bosch Professional 2608596050 CYL-9 Multi Purpose Drill Bit, 4mm x 40mm x 75mm, Silver

Reviewed April 2021:Used these for a number of years, in a number of countries, and they are my preferred drill bit for brick, stone, concrete, etc.I've personally used them on poured concrete, concrete blocks, light blocks, house bricks and cotswold stone. They are very fit for purpose, and providing you don't let them overheat, will keep their points and have a decent shelf life.Although branded as multipurpose, I've not used them on anything metal, and I can't imagine they would be much good. I have used them once or twice to drill wood, they are not wood drills and they do not give a really clean cut, but in a 'first fit' situation, where its just needed to get a hole drilled, they do the job.I have used them to drill plasterboard/drywall and they are fine, but the the trick is not to push through too hard, especially if the walls have not been skimmed with plaster. (Unskimmed, I prefer to use a regular wood drill to be honest).Think I've reviewed these before, they are my preferred bit for any kind of masonry drilling, they may be a touch more expensive, but worth it.

I salavaged a stair rail when clearing my late aunt's house with the intention of putting it up in my elderly parent's home to help them get up the stairs. I bought two of these drills as I didn't want to trust the collection of tired masonary bits I own. Twelve holes into a wall that has had goodness knows what's gone on behind the plaster in the last eighty years. I used an old mains non-hammer drill, as I didn't think my cordless would be up to the job. It only took one of the drills to do the job in no time and its still sharp. I've now got two 8mm masonary bits I reckon will last for the rest of my life. Fantasic product.

I’ve got a set of these Bosch drill bits and they really are good. I got their slightly cheaper ones a while back and they’re nowhere near as good. These were the only drill bits that carried in going through the tiling when I drilled it. I did 16 holes and they did nit seem any more blunt when done than when I started. Nothing else seemed to touch them-even diamond tile bits. BTW did not crack a single tile. Good drill bits that’s why. If you can afford the bit extra- go fir it -they really are excellent.

Good strong drill bit lasts for a good time, buy on a regular basis

Good

Fed up with going through standard masonary bits I thought I'd try one of these. Glad I did. Drilled through several tiles and into the backing wall like it wasn't there.. Started off slow, immediately started to "grind out" / cut through the tile, then sped the drill up and away it went.. Several holes later the bit looks like new still.Further future use will tell longevity and durablilty but looking promising.

This range of bits happily goes through brick, concrete and thin sheet metals. It's not so happy in wood but it's really designed for the tougher stuff. Lots of sizes and lengths are available.

It works. It’s a drill bit. What more can I say?

Excelente produto, perfeito no procelanato.

A broca é boa demais!

Gostei e recomendo.

A inovação tecnológica aliada a praticidade de desenvolver diversos trabalhos com excelência....

Se vc está querendo qualidade esse e o produto nota 10 para a Bosch.