DeWalt Extreme 2 HSS Drill Bit Set 13Pcs
drill bit does the business
Excellent product. I contacted screwfix as my drill bits were having no impact on a steel/metal girder above the window lintel. The advisor spoke of these drill bits as being very good. I tried them immediately i got back home - within 30 minutes the rail was fitted curtains up and room tidy.
29 Jan 2015
Brought them direct from the shop, use them straight away, very easy to get the right size bit and keep them in the right order in the box.
12 Nov 2014
DeWalt extreme drills
The 5 - 10mm sizes of these drills seem excellent for drilling timber or steel without needing a pilot hole. However the sizes below 5mm lack both the flatted shank and the pilot ground on the point. These smaller drills are ground pretty much as a standard twist drill.
Whilst excellent for drilling straight to size (actually they appear to cut slightly oversize) the flat edge beyond the pilot on sizes 5mm and above means they are not good at centring on a pre-drilled pilot hole. I would advise anyone buying these to just get the 5, 6, 8 and 10 mm drills to benefit from the self piloting design up to the point where power requirements in metal mean you need to increase hole size in a series of steps.
I do not think this set or the larger set are good value as the drills below 5mm lack any design advantage to justify their cost and the drills larger than 10mm are not much use on metal unless you have a very powerful drill or can accept the poor centring.
Too early to comment on reliability.
28 Apr 2014
Brilliant Drill Bits
I was struggling to drill out some socket screws with ordinary HSS drill bits. Used one of these drill bits and the job was completed in seconds! Highly recommended for tackling drilling tasks in hard metals - can't comment on the potential longevity of the drill bits but I am sure that with careful use they will remain very sharp.
10 Mar 2014