Can I use Energer SDS Drill for 100mm core in brick?

[crobar]

I have one of these cheap SDS drills:

http://www.screwfix.com/p/energer-enb465drh-4-8kg-sds-plus-rotary-hammer-drill-230-240v/63303

It's an Energer ENB465DRH 4.8kg SDS Plus Rotary Hammer Drill 230-240V

It has a clutch and seems relatively low RPM (850rpm no load, 40Nm max torque)

Can I use this to do a 100mm core in sandstone/brick, or should I just hire a diamond core drill for the day? By use this, I mean, without breaking my arm if it sticks? I've only got one hole to do.

If you think I can, what sort of drill bit would you advise I use?

Thanks!

 

[flameport]

If the bricks/stone are relatively soft then a TCT core will do, but the speed will have to be low and it will take a fair amount of time.
Breaking the drill is far more likely than breaking your arm.

 

[crobar]

If the bricks/stone are relatively soft then a TCT core will do, but the speed will have to be low and it will take a fair amount of time.
Breaking the drill is far more likely than breaking your arm.

Thanks, in this case should I use the hammer drill or turn it off? It's a single speed drill, so I've no option on RPM.

 

[Deleted member 174758]

With a TCT core bit you can use the hammer action, however the blow-out on the far side of the wall will be massive - far better to pilot through with a long, thin bit then core drill from both sides to the middle. I've used a 100mm TCT bit in the past in my 2kg industrial SDS, but it was always a bit iffy to say the least, with there always being the chance of a "catch". When it did, and it did a few times, it really hurt (believe me). For that reason I swapped to using a dry core drill and dry diamond cores a few years back and now have far less problems

 

[crobar]

Thanks JobAndKnock, maybe I'll just hire a drill to get the right finish. I'm in a third floor flat so unfortunately can only come from the inside.

 

[Deleted member 174758]

In that case make sure that nobody can walk beneath where you are drilling (barrier or tape off an exclusion zone if possible) because a lump of masonry on the bonce can ruin one's karma

 

[crobar]

In that case make sure that nobody can walk beneath where you are drilling (barrier or tape off an exclusion zone if possible) because a lump of masonry on the bonce can ruin one's karma

Good advice, I'll make sure I do that.