Erbauer Diamond Core Drill Bit 28mm x 300mm
Could do better
Overall, this is not a terrible product, especially at the price. However, it would be much more useful if this came as a kit (ie including a long enough masonry bit to provide a pilot hole). The core works OK, although wear was quickly evident, but I spent longer trying to fit the pilot drill bit to my core holder than I did actually drilling.
4 Mar 2015
worst drill bit ever
this bit wore out after cutting 2 inches of concrete. I used this bit AND a larger bit (DIFFERENT BRAND) to cut into the same material using the same drill so i am comparing like for like. My old bit is still good for another five years this one is going back to screwfix.... I am dissapointed because erbauer are usually a reliable brand for blades
9 Jul 2012
Diamond core drill
I found the product easy to use - it did the job that I required quickly and neatly - it is definitely worth getting the best tool for the job as the alternative would have been a cold chisel and hammer which would not have given me such a neat finish.
26 Mar 2012
Had to buy two as first broke!
Needed to finish a job and only drill of size I could get at the time 'off the shelf'. Bought to drill core for 500mm lenght in brick and breeze wall. Drilling took some time, so slow cut rate. half way through the second hole the I lost all the teeth off drill. As I had started had to get another one.
Not best pleased with quality and durability. Probably overheated drill as such a long core. It could therefore be ok for short core drilling.
I have found this make of core drill to take for ever to drill core in past so not the sharpest drill in the box!
23 Oct 2011