Clarke Metal Worker Cobalt Drill Set 19 Piece CHT383

Really good quality up to now and have been used lots, hoping they last. They come in a really nice tin so enables you to keep them together and neat. Good range of sizes so allows you to do lots of jobs with them. Initially was bought for home and have been used to carry out lots of job around the house, however the husband has since taken them to work as he needs them more there and they seems to be holding up well.

Very tough, sharp and work well.

Used on harden steel bolt and works very well. Great product

Decent drills but still dont have the same quality as other manufacturers like DeWalt as their cobalt drills are far superior to any others I've seen (and used) on the market in my opinion but they do show for this in price (Expensive...).The case itself is cheap as chips and doesn't close correctly due to the drills becoming stuck against the side in which I have to constantly lift the big drill bits at the back up to get the lid down and this can result in the smaller drills falling out of place which becomes frustrating at times.Can drill most materials but as for myself, my work drills a lot of stainless steel which cobalt drills are meant for in which case for drilling any steel of the sort with a thickness of 3 mm or more a cutting and tapping fluid must be used otherwise the drills will blunt and eventually wear out much more quickly without any fluid or lubricant. Due to stainless steel being a relatively soft steel compared to other steel alloys it becomes a bugger to drill when it heats up which is where cobalt comes in handy with its ability to withstand heat without deformation making cobalt drills a prime choice over regular HSS drills. Take great care when using the small drills making sure they are razor sharp and use plenty of cutting fluid or it will blunt quickly if you drill a lot and it will get to a point where it is a struggle to drill and when you apply to much pressure they will snap easy. The drills overall do what they are made to do and do it quite well but once again....still lacking behind other competitors in quality in my opinion.

They are what they say the are Cobalt drills not always the case. They are quality made drills

I've only used the 8mm so far, but they seem noticeably superior to the cheaper sets that state they contain some amount of ccobalt and either blunt after one use or just don't do the job at all when drilling high carbon steel.Spend the extra money on these if you're an amateur blacksmith.

o.k doe,s what it says on the tin

Drill bits serve their purpose well. I cannot comment on longevity and durability because they are a recent purchase.