http://www.screwfix.com/p/sparky-bur2-350e-240v-1100w-diamond-core-drill/60554 best budegt core drill. Marcrist or Hilti if you have loadsadosh
Marcrist DDM2 with a good set of core bits. Benifits of the DDM2 is you can drill up to a 200mm hole wet or dry.
i have no idea about core drills,but when I worked,we had a Sparky impact wrench....What a load of ****. Just don't go there mate, they are Chinese cr*p
Their sds drills are no better. If you only have the odd hole to core-110mm or over, then hire, will be cheaper.
Save your money & buy some thing decent,Bosch GBH 3-28DFR around £275 or less, several offers available with extra's, will handle a 82mm core in masonry, so will easily core a hole for 50mm waste pipe.
Previously used a Makita core drill but the clutch cut in with the slightest bit of pressure, now use a Dewalt silver bullet and am really pleased with it, cheaper than Makita plus has more power! Purchased from Screwfix (sure it was £209 but now £199). http://www.screwfix.com/p/dewalt-d21570k-gb-1300w-127mm-silver-bullet-diamond-core-drill-230v/48374 Forgot to mention I normally use 52 and 117mm core cutters.
Dewalt silver bullet is designed as a core drill,hences it's ability to use up to a 127mm core in brick or soft masonry. Nice it's a 16mm chuck but, a shame it's a keyed version.
for a cheap core drill the makitas are good, i brought a dewalt and sold it after a few holes as it was pants, few years ago mind.
I don't like Dewalt, & never would buy anything Dewalt, it's Bosch, Makita, or some other reputable brand.
my theory is buy cheap and when its broke get another,,,,,,,only on this occasion I bought cheep a Looooooong time ago and I've still got it and its STILL working,,,bear in mind i'm not a salesman,I'm on no commission I have a rep for telling like it is, so watch this,,,,,
When you bought cheep all those years ago,way back in the last century,they were made to last, not like today's cheep tack. Got a cheap unknown brand drill here, must be nearly 37 years old & it's still going.
Cheap drills are ok(same as seen in above video) but wouldn’t recommend them for core cutting, after using one where the core got snagged - the side handle snapped and almost broke my wrist! Done several holes with the Dewalt & can't fault it, shame its not sds (but our Makita was also a keyed chuck).
Thanks Kiab, may just do that! use a sds paddle mixer for knocking up plaster, this drill would be ideal for that too.