"As others reviewers have said it's a countersink bit - but it's a very good countersink bit!! :-) only just rreceived it and used a couple of times on wood and 3mm s/steel - end product nice crisp & neat edges - didn't realise old one was so blunt. Great for the price only 3 star for reliability not used it enough to judge"
"Considering the number of times I have used a larger drill to do this job, it would have been so much easier. I recently acquired a Dewalt DrillXR and a new set of tools. This makes easy work of a previously tedious job. Would buy another without fail."
"I wish my Dewalt drill performed as well as the countersink. Unfortunately, I need a new battery for the drill!! The countersink eased its way in to the mdf and made a cracking job enabling me to fix some kitchen handles on to the doors that I was fitting for my mum."
"Purchased this as a spare to have kicking about in the workshop. I have to say it is incredibly sharp and after countersinking a couple of dozen holes in oak, it is still as sharp as it was when purchased. I expect it will last a fair while."