Problem drilling into a wall

no1catman

I have a garage constructed with concrete sections - about four inches thick, and pebble dashed on the outside.


I trying to drill holes in it, all I seem to achieve is a slight crater!


It has been done in the past - had a PIR security light fitted, and have managed hols in the past - with difficulty. But now, after alignment, the 'hole' must be in a position - through a chipping.


It doesn't seem to make any difference what size masonry drill I use.
So, is it the drill I'm using not being powerful enough? Mine is 810 watt.

DTDfanBoy

I assume you are using a hammer drill ???

It may well be the masonry bits you are using, I find that the De Walt Extreme 2 bits work very well.

RichardD1970

My house has concrete wall and I struggled for years with a normal hammer drill.

Last year I splashed out and bought a Makita SDS drill. Wish I had done it years ago. Like drilling into butter!

no1catman

DTDfanBoy wrote: »

I assume you are using a hammer drill ???

It may well be the masonry bits you are using, I find that the De Walt Extreme 2 bits work very well.

Yes, one I got from Wickes some years ago, tried the d/bits with the drill, and those from a Bosch set - no difference. Usually, the drill is great, but I hardly making any impression on this B*** wall.

Lorian

Hammer mode is selected?


(and do make sure you have safety glasses on)

no1catman

Lorian wrote: »

Hammer mode is selected?


(and do make sure you have safety glasses on)

Yes, and no - only ordinary!

jakemillspaek

I reckon your concrete walls are post tensioned. Take heed...although your walls are fairly thin it can still be dangerous.

jk0

You need one of these: http://www.diy.com/departments/bosch-550-w-corded-sds-rotary-hammer-drill-psbh2100re/174057_BQ.prd?gclid=Cj0KEQjwvOC5BRCb_8yNmZ_ls9IBEiQACTz8vgC2NwXPIM-ZTljOUbPfkR8lXX6A0swJ_qS_1sWSCMIaAuYK8P8HAQ&ppc_type=shopping&ecamp=SEAPLA174057_BQ&ef_id=VwAwuAAAABMxLWcD:20160515185014:s

no1catman

Howabout this -


http://www.tesco.com/direct/blackdecker-600w-corded-pneumatic-hammer-drill-kd860ka/211-3973.prd?pageLevel=&skuId=211-3973


or even this -


http://www.tesco.com/direct/silverline-hammer-drill-1010w/212-2308.prd?pageLevel=&skuId=212-2308

Silver-Surfer_2

no1catman wrote: »

Howabout this -


http://www.tesco.com/direct/blackdecker-600w-corded-pneumatic-hammer-drill-kd860ka/211-3973.prd?pageLevel=&skuId=211-3973


or even this -


http://www.tesco.com/direct/silverline-hammer-drill-1010w/212-2308.prd?pageLevel=&skuId=212-2308

You'd be better off buying this.

http://www.screwfix.com/p/dewalt-d25033-sfgb-2kg-sds-plus-hammer-drill-240v/9062g

fezster

As per above. Use an SDS hammer drill. I struggled for years without and recently had to drill a number of holes for some CCTV cameras. The SDS drill goes through masonry like butter.