Bosch Professional 7-Piece CYL-3 Concrete Drill Bit Set (for Concrete, Ø 4-10 mm, Accessories for Impact Drills)

Good quality drill bits from Bosch they were ideal for my cordless Bosch drill drilling into old bricks and they went through without a problem

If you want a small set of masonry drills for home fixings, you cannot go wrong with these

In general they are a decent set of drill bits. I used this to attach a bracket for an outdoor washing line. The drill bits made short work of mortar between the bricks but took a little time with the brick itself. After a four hole drilling session the bits seem to have stood up as well as can be expected and still had a decently sharp and shaped tip. I did try a set of cheaper ones and they blunted within a minute, so even though these cost a little more, the performance is worth the extra costs.

These aren't the longest lasting drill bits I've ever used, Though it's hard to find a 5mm that is. But at the price point and trust in the Bosch brand, it was an easy decision to buy. *** Pros *** - Works very well - Fits into the Bosch drill bit caddy (the multi-pack one) - Comes oiled so it won't rust - Good value - Lots of sizes available - Trusted brand *** Cons *** - Doesn't last all that long, but also it's rare to find a good 5mm that does *** Overall *** If you need a 5mm drill bit, then this is a great choice. There are others that are cheaper and that should last as well, but for me I'd rather spend that bit extra getting something I know works well.

First thing to get out the way is that I use standard bits for indoors and normal brick only, preferring to use SDS for heavy duty jobs - larger holes or harder materials. Although these are listed as concrete I really buy them for longevity rather than actually using them on concrete. Again, I would use an SDS drill and bits for concrete and harder materials like engineering brick. Used on softer materials ( standard block and brick ) these will last a very long time, making them excellent value. I bought this set to replace the last set I bought about ten years ago!! So yes they do last a long time as long as you take reasonable care with them. A very important feature of this set is that it has a 7mm bit. Most sets do not. I don't know about you, but I use 7mm wall plugs for No.10 screws. You can buy 8mm wall plugs instead but it seems a lot easier to just buy a set of bits with a 7mm bit!! It's unfortunate that this set doesn't include a 5.5mm. Oddly that size is sometimes useful for 5mm wall plugs. Don't ask me why but that slight over-size is helpful with some materials, especially plaster. To complement the set, I also buy 3mm drills of the same type. You may wonder why(!) but I find the 3mm drills as an excellent starter when I really need to position the hole accurately. Anyway! They are great drills, buy some!

This drill bit is ace. I used a cordless bosch professional drill on hammer on a stone house to put a camera up, this drill bit went straight through the stone with ease, proper stone not the new stuff. Made the job so easy and fast.

Reviewed March 2021: Been using these to fix a wooden frame to walls made of redbrick and also Cotswold stone, plus a couple of anchor points into a concrete floor, so I've given them a fair workout. They have help up well, being able to deal with all I needed. A wise person once told me, and its been proven by previous experience, that the quality drill bits are important, and heat is the biggest factor in wearing out the tips. It is important to remove dust build up from any masonry drill. So stopping, pulling the bit (and therefore dust) out of the hole, perhaps blowing the dust clear, will really extend the life of a decent bit. I bought a couple of new bits for my project, think I drilled about 40 holes in total, all with the same bit, and there is still some life left in it. I"ve tended by buy Bosch bits because I've had good experiences with them in the past, previously I've used the 'pro range', that has the blue paint in the recesses, but these are equally as good. I'd buy them again.

good quality masonry drills, drilled into concrete with ease

Fa il suo dovere. Data la lunghezza della punta occorre più attenzione nell'eseguire i fori (ma questo non è colpa della punta ovviamente). Dovendo forare il soffitto attraverso 7 cm di legno la presenza di una guida mi ha sicuramente facilitato il compito.

Dovevo perforare delle piastrelle in klinker nel bagno, notoriamente molto resistenti ma allo stesso tempo facilmente scheggiabili. Ne ho provate altre (poi restituite) che si sono spezzate nel foro provocando un notevole danno (poi risolto grazie ai ricordi dei consigli di mio padre grande hobbista). Con queste punte non ho avuto problemi, foratura semplice e fori precisi senza sbavature. Sono solide e non si sono assolutamente usurate nonostante numerosi fori fatti; le consiglio anche per un uso intenso.

It really works well on extremely hard concrete wall

This is the best hardware I've ever purchased.

J'ai récemment acheté le Bosch Professional 7 pièces CYL-3 Jeu de forets à béton Set et voici mon retour après quelques semaines d'utilisation : Points positifs : Qualité de fabrication : Ces forets sont robustes et de très bonne qualité, comme on peut l'attendre de la marque Bosch. Ils sont faits pour durer et offrent une résistance optimale même pour les matériaux les plus durs comme le béton. Polyvalence : Le jeu comprend plusieurs tailles (de 4 mm à 10 mm), ce qui est idéal pour une grande variété de travaux de perçage, que ce soit pour des fixations légères ou des trous plus grands. Efficacité : Ces forets performent le béton avec facilité. Leur conception permet de percer sans trop de résistance, ce qui est un gain de temps pour les travaux. Compatible avec perceuses à percussion : Les forets sont parfaitement adaptés pour une utilisation avec des perceuses à percussion, ce qui améliore leur efficacité et leur capacité à percer rapidement dans des matériaux durs. Points négatifs : Prix légèrement élevé : Bien que la qualité soit au rendez-vous, le prix peut être un peu plus élevé par rapport à d’autres marques, mais la durabilité et la performance justifient cet investissement. Manque de forets plus petits : Un foret plus petit (moins de 4 mm) pourrait être utile pour des travaux de précision, mais le jeu reste adapté pour les tâches les plus courantes. Conclusion : Le Bosch Professional 7 pièces CYL-3 Jeu de forets à béton Set est un excellent choix pour ceux qui recherchent des forets robustes et performants pour leurs travaux de perçage dans le béton. Avec un bon rapport qualité/prix et une performance de haut niveau, c'est un set que je recommande pour les professionnels ou les bricoleurs expérimentés.