SDS drill being used instead of core drill?

[HappyHippyDad]

I realise this has been asked before, but I find the search bar really poor on the site since the big change and it doesn't come up with anything useful.

I am getting more extractor fan installs that require wall mounted fans. Instead of hiring a core drill once a year I wondered if anyone uses their corded SDS drill?

I used a friends 4kg SDS and it seemed fine. My SDS is a Bosch GBH 2.7kg and I wondered if this was sufficient for perhaps 4 or 5 x 100mm holes p/year?

Cheers.

 

[Octopus]

Just buy a proper core drill

Its not just the cost of the hiring, its also the time wasted to go and get it and then again to take it back.

 

[mattg4321]

I use my SDS for maybe 3 or 4 holes a year maximum. Yes, not ideal but it does the job. My take on it is, if it kills the drill its only £100 for a new one. The cost of a decent core drill is much more. My current SDS is around 5 years old so isn't doing bad considering it takes a bit of a beating at times.

 

[Toneyz]

And to think I used to knock out by hand with a comb chisel and bolster hammer.

 

[Dave OCD]

I used to stitch drill it out then on to the good old hammer and chisel.

 

[ashrow]

i use the dewalt d21570 core drill, screw fix sell them for around £200

 

[Octopus]

I've just looked back through my records and I bought my core drill 6 years ago ......... prior to buying one the cost to hire was £30

I've used mine about 8 times this year alone so its paid for itself many times over ............ plus its in the garage when I need it

 

[Deleted member 26818]

SDS drill for £100?

 

[Dave OCD]

HHD this is the one I bought around 4 years ago, I've used it about 25 times and it works really well - maybe less costly than you'd think ?
You can also get a more powerful 1700w version but I don't think that's necessary for 4"/110mm holes and they're over £600 !

https://www.screwfix.com/p/dewalt-d21570k-gb-1300w-silver-bullet-diamond-core-drill-230v/48374

 

[-Matt]

What is the actual difference between a core drill and a SDS with a clutch?

Other than price.

I just use a mains SDS and have had no issues.

 

[Dave OCD]

The difference is the power to cope with the torque needed.

 

[mattg4321]

SDS drill for £100?

Great drill, as good as if not better than other SDS drills I've borrowed etc. Think I bought mine at a show - maybe ELEX - 5 years ago for £85 including

https://www.amazon.co.uk/dp/B00FI5X...=1006583&hvtargid=pla-419974731816&th=1&psc=1

 

[Deleted member 26818]

Great drill, as good as if not better than other SDS drills I've borrowed etc. Think I bought mine at a show - maybe ELEX - 5 years ago for £85 including

https://www.amazon.co.uk/dp/B00FI5X...=1006583&hvtargid=pla-419974731816&th=1&psc=1

Ahh, corded.

 

[LankyWill]

We had Milwaukee core drills on the firm i did my apprentice with, on the occasion it would play up(user abuse) which meant a trip to the van for a Bosch sds (4kg) jobby. I can honestly say its a real pain to use for core drills as the clutch kicks in constantly and it weights a bloody tonne. It takes about 25-40 mins faffing about with it compared to 5-10 mins with a dedicated core drill.

 

[mattg4321]

Ahh, corded.

I wouldn't be using a battery SDS to core holes for fans! Surely no one would. Would they?!