Blue sparks in hammer drill?

keystone

If it's a cheap drill its got cheap brushes. Prolly nothing to concern yourself with.

Cheers

martin57

Thanks again everybody. Will try a new set of masonary drills, what do you think of this lot on ebay?

http://cgi.ebay.co.uk/Bosch-5-Piece-Robust-Line-Blue-Granite-Drill-Bit-Set-/280588009067?pt=UK_Home_Garden_PowerTools_SM&hash=item4154593e6b

Or if you see something better I would be grateful if you'd point it out,

martin57

securityman

martin57 wrote: »

Thanks again everybody. Will try a new set of masonary drills, what do you think of this lot on ebay?

http://cgi.ebay.co.uk/Bosch-5-Piece-Robust-Line-Blue-Granite-Drill-Bit-Set-/280588009067?pt=UK_Home_Garden_PowerTools_SM&hash=item4154593e6b

Or if you see something better I would be grateful if you'd point it out,

martin57

I would just buy the size that you need for the raw plugs you are using.
I use a 5.5mm for red plugs. Only about £2 tops
Buy a good one because if it's not SDS it will have to work hard.
What is the screw going to be holding?

martin57

securityman wrote: »

I would just buy the size that you need for the raw plugs you are using.
I use a 5.5mm for red plugs. Only about £2 tops
Buy a good one because if it's not SDS it will have to work hard.
What is the screw going to be holding?

Going to put up a corner shelf and also a few hook coat hangers. I think that I will buy a set of sds Dewalt Extreme2 as mentioned here as local hardware shop charge £3-£4 for one bit and this set is just under £13.50 for 7 piece.
http://cgi.ebay.co.uk/DeWalt-SDS-Extreme-2-Drill-Bit-Set-7-Piece-NEW-DT9701-/160423006313?pt=UK_Home_Garden_PowerTools_SM&hash=item2559f4d069

Will sds these bits definately fit the cheap argos hammer drill as below?
http://www.argos.co.uk/static/Product/partNumber/7106062/Trail/searchtext%3EHAMMER+DRILL.htm

On reading through the posts again, it seems not, that i need the sds drill rather than the hammer drill that I have. The Dewalt Extreme2 masonry bits recommended by andrew-b above, are they different to the Dewalt Extreme2 sds bits as above on ebay?

thanks again
Martin57

optimus_primera

First off, the 'SDS' drill bit has (for want of a better word) slots machined in to the end, these then fit into a corresponding mechanism in the chuck, therefore the drill bit cannot slip at all,so no wastage of energy.

SDS drill bits do seem to be better made than 'normal' bits.
Cheaper SDS bits appear to be better made than more expensive normal bits.

Expensive pro spec SDS bits are a whole different ball game,very very good.

securityman

martin57 wrote: »

Going to put up a corner shelf and also a few hook coat hangers. I think that I will buy a set of sds Dewalt Extreme2 as mentioned here as local hardware shop charge £3-£4 for one bit and this set is just under £13.50 for 7 piece.
http://cgi.ebay.co.uk/DeWalt-SDS-Extreme-2-Drill-Bit-Set-7-Piece-NEW-DT9701-/160423006313?pt=UK_Home_Garden_PowerTools_SM&hash=item2559f4d069

Will sds these bits definately fit the cheap argos hammer drill as below?
http://www.argos.co.uk/static/Product/partNumber/7106062/Trail/searchtext%3EHAMMER+DRILL.htm

On reading through the posts again, it seems not, that i need the sds drill rather than the hammer drill that I have. The Dewalt Extreme2 masonry bits recommended by andrew-b above, are they different to the Dewalt Extreme2 sds bits as above on ebay?

thanks again
Martin57

But would you use any of the other bits?
I only use a 5.5mm bit and a 10mm X 500mm long bit.
If it was me, i would get a couple of 5.5mm bits, box of red plugs and a box of 8X1 1\2" (or 50mm i think) screws. You will be ready to fix most things up then.
As AP said SDS will only fit a SDS drill.

martin57

Thanks everybody for all the good advice.

martin57

securityman

andrew-b wrote: »

And you can buy them singly if you want..entirely upto you. Use whatever size it says on the rawlplugs..which i generally find to be 6mm or 8mm depending on plugs your using. I don't even posses a 5.5mm bit and none of my rawlplugs say to use that size so i don't.

Still i usually buy in small sets for convenience and it often works out cheaper. I hate to find i haven't got the right drill bit for the job in hand and there is not a drill bit i own that i haven't used at one time or another. Longer larger bits or smaller bits or less common sizes you generally have no choice but to buy singly. Don't buy big sets of bits as they tend to be rubbish.

I find a 5.5mm bit better because when you drill, unless you get a clean hole the raw plug will just spin in the hole. Try using a 6mm on old plaster with a hammer drill.
Better to have a tight fit.
Me using a 5.5mm bit started about 10 years ago when i started working for a security co installing alarms and CCTV. This is what the firm supplied. Been an electrician for 2 years and it's the same with the two firms i have worked for in this trade.

Canucklehead

securityman wrote: »

I find a 5.5mm bit better because when you drill, unless you get a clean hole the raw plug will just spin in the hole. Try using a 6mm on old plaster with a hammer drill.
Better to have a tight fit.
Me using a 5.5mm bit started about 10 years ago when i started working for a security co installing alarms and CCTV. This is what the firm supplied. Been an electrician for 2 years and it's the same with the two firms i have worked for in this trade.

Hi...I agree.;)

GSR

diable

Damn I forgot to post this link I am a bit slow today lolzzzzz