4" core bit, cuts just like butter, yeh right!

[Top Cat]

Fitting an inline fan today. Brought my 4" core bit in and the guy says "oh those are great, it cuts through brick like a knife through butter". Yeh right i thought.

Started to cut hole, the bricks were hard as rock! Also it was an old place so no cavity so you had to go through 2 lots of brick so the drill kept binding.

3 hours it took me! You could fry an egg on my drill it had got so hot!

If i had had any strength left in my arms i would have shoved the guys head through the hole i had just made!

Anyone know the best core bit to buy?

 

[GLENNSPARK]

better still....powerdevil.....top notch them.....

 

[Top Cat]

what sort of drill were you using. I used to use a SDS but got a core drill and never looked back

I confess! SDS, maybe time to invest in some proper kit!

I would still like to know what is the best core bit around as i feel the more clearance the bit has the less likelihood of binding.

 

[GLENNSPARK]

norton....or edge diamond...

 

[Tricksy]

I remember hiring a core cutter/drill from Travis perkins about 10 years ago. I spent ages breaking through and a lot of sweat and swearing. When I took it back the guy said "Oh, that shouldn't have been hired out, it's blunt".....

 

[Top Cat]

HEY T,C

thats the only idea think we all have the t shirt ( hope yours fits) lol

Don' know how to take that sedgy as you saw my photo the other day on my website! The truth hurts you know!

 

[Mark_Burgess]

I have these Spectrum, Brilliant, worth the money no problems with it.

 

[UNG]

If you are using diamond core bits they can glaze the diamond if continually drilling hard material to deglaze them and restore the cutting edge run it into a cinder block