Drill bits
- Thread starter bigg6480
- Start date
exmoor dave
Member
- Location
- exmoor, uk
i bought a set of cobalt bits, every size from 1mm to 13mm, in 0.5mm increments, Heller i think, got them off ebay
bloody brilliant.......but i have to hide them because they get abused by other family members.......there's a tub of random HSS bits for everyone else's use
think they were about £50, if getting a set from where ever, i wouldn't settle for anything less than cobalt, you can still sharpen them yourself......haven't had to yet thou!
bloody brilliant.......but i have to hide them because they get abused by other family members.......there's a tub of random HSS bits for everyone else's use
think they were about £50, if getting a set from where ever, i wouldn't settle for anything less than cobalt, you can still sharpen them yourself......haven't had to yet thou!
exmoor dave
Member
- Location
- exmoor, uk
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Paddington
Member
- Location
- Soggy Shropshire
Dewalt extreme when new, having said that is there a way of resharpening them?
Grinder
Paddington
Member
- Location
- Soggy Shropshire
Yes, but what about the double flute on them?
yea you can do them
exmoor dave
Member
- Location
- exmoor, uk
for bits up to 13mm you can get a cheap and effective sharpener.......on my 2nd now!
google image, but my set up is the same.
Darren
Member
- Location
- Lincolnshire
Has anyone bought set from a show ? The chap that's drilling brake discs , concrete and wood with the same bit. Seen him at a couple of shows but its one of those to cheap to be true deals.
Seen same on TV I did wonder too
Brake disks are usualy cast iron, not too hard to drill. Any drill that will drill metal, will drill wood and concrete, though in the case of the latter, usually just the once! Material is the key to long life, I have never used cobalt bits, always hss. Drills can be sharpened easily and you dont need fancy drill sharpeners, just the knowlage of how to do the job, and a grinding wheel in good order.A tip to help sharpening, two hex nuts held together flat to flat, make a good angle checking device. The angle between the flats will be 120 deg, which is about right for general work, and you can see if the point is still in the middle, if its not, the drill will cut oversize.
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itsalwaysme
Member
- Location
- Cheshire
If you search the internet for reviews on these "drill anything bits" (they are sometimes offered on the shopping channels (channel hoping when can't sleep)) the reviews are generally not good at all.