Is this drill up to the job??

hiking bear · Post by **hiking bear** » Wed Dec 05, 2007 9:12 pm

Firstly i would like to say, i am an agricultural engineer and hence know very little about building so please bear with me. I need to drill 60 holes into concrete, being 12mm diameter and about 75mm deep. I was going to hire a decent masonary drill for a few days. However in my local Focus they have for sale a Mc Keller?? 850w rotary hammer drill with SDS. It looks more like an industrial tool as opposed to your normal drill. Price £30.. Question is would this do for the job as it works out same as hiring one? Also i need to buy some 12mm drill bits to suit and would probably order from Screwfix, can anyone recommend a particular bit? I do know that when the concrete was laid 5 years ago it was a harder gradethan normal.

jason123 · Post by **jason123** » Wed Dec 05, 2007 9:29 pm

Should be ok for 60 holes, this bit should do the trick too.

http://www.screwfix.com/prods/48196/Dri ... t-12-160mm

stevemastic · Post by **stevemastic** » Wed Dec 05, 2007 9:29 pm

only hire a sds drill if it has a clutch ( as a broken wrist hurts), I like the dewalt extreme2' bits never had any problems with them. £ 30.00 is throw away money it it lasts 60 holes

if it don't take it back (clutch is a must)

jason123 · Post by **jason123** » Wed Dec 05, 2007 9:30 pm

Out of curiosity what is being bolted down, if its a grain silo, Id go a little deeper than 3"

hiking bear · Post by **hiking bear** » Wed Dec 05, 2007 10:17 pm

What im bolting down is 15 Catnic floor plates that hold 100mmx100mm posts, 4 bolts per plate. Its for a raised shelf/mezz floor at the back of my barn.

carhartt kid · Post by **carhartt kid** » Wed Dec 05, 2007 11:42 pm

Ditto the above. Buy a disposable McKeller. Take regular breaks while you're doing the job. The vibrations can give you white finger and nerve damage. So take it steady and let the SDS do the work for you!

Wood Magnet · Post by **Wood Magnet** » Thu Dec 06, 2007 1:16 am

Try drilling smaller holes first, then the 12mm should go in easier.

devlin · Post by **devlin** » Mon Dec 10, 2007 10:43 am

Hi
I agree with the answers above as regards the £30 quid drill I bought one a couple of years back and it did its self proud taking on a whole host of demolition and drilling even up to 22 mm to a depth of almost a metre but as one reply has stated slow easy and take breaks for your sake and that of the drill
Devlin

hiking bear · Post by **hiking bear** » Thu Dec 13, 2007 9:20 pm

Thanks for all the replies. Just to let you know the drill worked excellent. I used 12mm De Walt SDS masonary bits from s,fix. I was amazed at how it went through,cant recommend highly enough considering £30.!! cost.