No hay artículos en el carro
No hay artículos en el carroDiámetro de corte: 100 mm (cerca de 4 pulgadas) Sierra de agujero de hormigón con varilla de conexión SDS Plus de 220 mm para pared de piedra de hormigón de ladrillo de cemento.
Francisco Alberto Silva Gamboa
Comentado en México el 13 de abril de 2025
Es Excelente Material lo Recomiendo para trabajos de Fontaneria y Cabliado Electrico esto para no romper parededes
Cliente de
Comentado en México el 31 de julio de 2024
En 3 minutos ya habia atravezado la pared (cemento + ladrillo naranja) de manera limpia y facil.MUY recomendado.
MRDAVE
Comentado en los Estados Unidos el 25 de agosto de 2023
Used this to core a hole through 6” thick rock wall to install a 3” ABS drain pipe. Used a smaller Bosch hammer drill. It took a while and some effort, but went through. Looks like it still has a few hole more it can do at least. Would have been easier with a wet Diamond hole saw but couldn’t use water in this location. I bought another one for 4” pipe. Will def come in handy. Goes right through stucco, good on brick too.
Chuck - Austin, TX
Comentado en los Estados Unidos el 10 de diciembre de 2023
I initially saw reviews that this was cheap and would quickly wear out or break. Despite that I didn’t want to spend $80 min on one of the expensive ones. So I bought it and figured I’d try and make it work. And at the very least I could afford to buy two of them, wear out one, and use the other one to finish the job, and would still be cheaper than the expensive ones. I used this on 1955 slab concrete. If you don't know about this type of concrete, it's very dense. I had some plumbers recently that had to reroute a pipe and cursed at the concrete on my house, as it was hard to get through. When I started I figured it was about 5" thick. It turned about to be about 7" thick. I started off with just the hole saw and got down about 2". I then thought, this is going great, but I don't want to push my luck, so I went around the groove the hole saw made with a 3/8" concrete bit and would drill holes about 2" deep about and 1" or less apart. My thought is that the holes would create less surface area, and allow the dust and bits to fall down into and the teeth of the hole saw would chip away at the surface much quicker. It worked and I did this the entire way down. I used the hole saw on a Bosch Bulldog Xtreme and flipped back and forth between the drill and hammer drill option. The hammer drill option I think worked better. I did have to stop at times to let the drill cool down. The hole saw got hot, but not all that hot. As I worked down I would have a shop back hose end sitting right by the hole and it would suck up all the dust flying. I would say there is still a lot of life left in the hole saw even after the job and as I DIY person, used to cheap products, I fully go into some of the purchases thinking that products like bits can often be a one time use purchase. That's ok because I save a lot of money doing it myself anyways. The only real damage I see on the hole saw is obviously the teeth are worn some and they bent back slightly, which I think is par for the course on hard concrete. In comparison I bought a Bosch SDS rebar cutter concrete bit (which is supposed to be the most hardcore of hardcore concrete bits) and the teeth on that POS sheered off immediately on this job. That one masonry bit costed as much as the hole saw bit. Good luck guys! I'd buy this again without a thought.
Paul E Ingram
Comentado en los Estados Unidos el 17 de abril de 2023
I have a Bosch Bulldog and was tired of renting a core drill from the local hardware store, so I bought this. It yields a good clean hole through masonry, but my 4 stars is for the fact that it is *not* quite 4” in diameter. It’s closer to 3.9”. I was able to wallow out the hole and accomplished the goal.Best part: the bit isn’t worn out, which I found surprising for the price.
designinca
Comentado en los Estados Unidos el 23 de junio de 2022
This is a nicely made product and seemed exactly what I wanted - until I tried to fit it into my 3-jaw drill chucks and it wouldn't center. It's got four flats around the shank. It seems impossible to get an aftermarket 4-jaw chuck without paying hundreds of dollars so I'm resigned to using a violently wobbling 4" hole saw. Very unsatisfactory and if I didn't need to drill these holes so urgently I'd send it back
manonamission
Comentado en los Estados Unidos el 11 de noviembre de 2022
It worked great for me to drill a 4" hole thru 3 course masonry - hollow concrete block - solid block wall .This is more a 1 or 2x use throw away ....Yes a throw away, nothing more . If you get more life out of it then its an amazing deal! You also need to use this in the proper tool to get it to work well . It is an SDS Plus bit and at this size is meant to be used in an actual Rotary Hammer Drill , not your little 18v cordless hammer drill ....they are not the same!**Tips**_ the key to successful coring is water...keep it handy and cool down the bit as you go ....even a spray bottle works ._ the simple bolt for securing the center bit actually works when you properly seat the bit all the way down (its a tight fit so when you think its seated , push harder) and make sure the flat side is facing the lock down screw...Simple as that .....I swapped mine for a set screw since mine has lasted for 3 holes and is still going .
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