Hi, Am needing to drill two holes one for a bathroom extractor and one for kitttchen extractor. Been looking at hiring a core drill bit but they look at about £70 for a day or is it worth buying one this one with an extension bar. Would that be ok for a couple of holes? Thanks [Edited by: admin6]
the one I posted the link for was only 40 odd pounds for a single core with extension bar and arbour will still be cheaper than hiring but is that one I posted good enough to do two holes?
Probably removed because SF sell similar: http://www.screwfix.com/prods/20884/Drill-Bits/Core-Drills/Diamond-Core-Drills/Diamond-Core-Drill-Bit-107mm-x-150mm They dont like competitors products being shown on the SF website
I've been using a 110mm carbide tipped core drill for a couple of years now. Probably cut about 20 holes with it so far & its still going strong. Only needed to replace the pilot drill Cos it fell down a cavity!. Think I paid about £30 for the core drill & arbours. It cuts a bit of a rough hole but does the job.
I bought one from Boyes- local cheapy shop chain in n yorks, Yorkshire Stores also sell 'em at £15 for 100mm core, £5 for 300mm extension. Carbide tipped and sds max fitting. Only used it once but flew through dense concrete blocks. If in thermalite- just use your jigsaw! I have in the past just drilled a number of small holes in circle, ie 8mm with sds, then break out with cold chisel - 20 mins work max! Sod-taking 2 hours to trek to HSS-hire and back and for £40 as well!!
Last time I hired a core drill a few weeks ago it worked out to £20 plus VAT for the day. Whole lot, drill pilot bit and core piece. We already had the 110v transformer. Are you sure you're not getting confused with the weekly hire?
Buy buy buy. Forget the cost of hiring, think of all the TIME you spend hiring it and taking it back. If you only plan to drill 2 holes in your career, maybe you'd be better off doing something else....
Do you have the drill itself or just using a little SDS ? Your'll knacker the SDS pretty quickly with big core drill on the end of it. That may swing your decision..
My DeWalt SDS+ will do 110mm cores no problem, as should any £100+ drill (make sure it has safety clutch). Might have to break the core a few times to reduce friction, but it should be the teeth that do the work. Quite often use it in preference to my 6kg SDS Max monster, which isn't the easiest to use up a ladder. Unless you're strapped for cash, investment in good quality tools is always the best option!
I use a hilti dd110 complete with vacuum kit. Drills in a few minutes esily through most materials with no dust great saves a lot of hassle up ladders etc. Costs a bit but you can lease the tool from Hilti now for £40 a month. and you can always core from inside I do about three or four a month for myself and do some for others at a price so it's worth it. The vacuum can be used for anything wet or dry and you never need to go outside in. ; D
I have used a £65 bosch sds drill for five years with core drills no prob but you have to watch it doesnt break your wrist.
I don't know how you can be bothered with the hassle of an SDS drill and a cheapo core bit. I drilled through a 2 foot granite wall last week it took 12 mins. The sparky gave up.
All depends on how many times you will use it. I hire the cores because I don't use them enough or haven't needed them too often in the past. For me it's a nice to have, but not a necessity at the moment. Probably will buy a set of cores one day.
To be fair, my Makita 2450 SDS mains drill did well for quite a while but it was slow and painfull; the clutch kept on kicking in, and eventually the bearings literally fell out. I now know better and have a Metabo BDE1100W core drill and man, that kicks the Makita into row Z.. Not something the OP needs to buy maybe, but saves lots of time and therefore money.
I always buy if there is a tool I need but don't own. Hiring is false economy unless you're a DIYer who gets bored easily!
Thanks for all info I will probably end up hiring as although I have a decent Bosch dril it is not infact an SDS and from what I've read on here I need an SDS drill. So hire it is.....