"I like these drill bits, though originally I had a set of Irwin cordless (no hammer) drill bits, they were brilliant. I've used bits which were great on masonary, but rubbish when you have to drill through wood to get to it, these drill bits solve that problem.
I'm not sure if these are as good as the Irwins so can't give them 5 stars for reliability, time will tell, but so far I like them."
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Review 2 for Bosch Multipurpose Drill Bit 5 x 85mm
"When drilling through ceramic wall tiles I now know that masonry drills are useless. However, following advice I purchased this exceptional drill bit which achieved the result in seconds. would have been unable to complete the job without it."