Large drill bits

[Alex Beckett]

Hi all,

Am in need of new drill bits for 22mm pipe, will get a 28mm for sleeved 22mm but what do you guys use for the non sleeved 22mm pipe just a standard 22mm or 24mm bit etc....?

cheers.

 

[Ermintrude]

Ay? Sleeve 22 with 28, 28 with 35........ So after 28mm its core drills tct or diamond

 

[deandive]

30mm sds with a wiggle depending on the wall

 

[Masood]

I have a 25mm SDS Max bit for 22mm pipe. 28mm for sleeved 22mm. 32mm bit with a wiggle gets 32mm pipe through (obviously) which can sleeve 28mm as long as you use push-fit plastic waste. If I want to sleev in 35mm copper then it's the core drill..

 

[Rybo_1]

I always go 10mm over so 25mm for 15mm and 32mm for 22mm that way. If you do need to sleeve it then you know you've got enough room and also if your hole is slightly out (which is never the case with any of us in here) then you can sometimes get away with it as you have more room to manoeuvre. Anything bigger then it's core drill time personally

 

[bigads28]

I SDS max drill it right upto 40mm. Just use the next size up of pipe I'm using or waste pipe as the sleeve.

I use Makita Y cutters, shred 12" granite blocks in 5 minutes! :66:

 

[Rybo_1]

What's a SDS Max bit bigads28?

 

[tamz]

Fits a sds max gun

 

[village idiot]

I SDS max drill it right upto 40mm. Just use the next size up of pipe I'm using or waste pipe as the sleeve.

I use Makita Y cutters, shred 12" granite blocks in 5 minutes! :66:

So how come you don't have a link to this makita z cutters?

 

[bigads28]

HR4001C SDS Max Rotary Demolition Hammer Makita

Thats the drill. The drill bits are massive, shaft is about 20mm.

 

[Rybo_1]

Ahh I see. I think I've seen them on a big hilti breaker i
hired out once

 

[village idiot]

Errrhhh, so you actually want me to spend £1,000 on that beast? Ok, £500 as they say you get 45% discount?

 

[Rybo_1]

Blimey that drill is a beast. Do you actually use it that much over a normal sds?

 

[bigads28]

So how come you don't have a link to this makita z cutters?

[DLMURL]https://www.speedyservices.com/c0202336-s-makita-standard-sds-max-drill-bit-40mm-x-570mm[/DLMURL]

That picture doesn't do it justice, I will take a pic the morn in daylight so you get an idea.

 

[bigads28]

Blimey that drill is a beast. Do you actually use it that much over a normal sds?

I use it for bigger holes and on hard stuff. There is a lot of granite where I live. My normal sds I use upto about 20mm in block.

It can also be used as a chisel for demolition etc. Expensive but its not failed me yet!

 

[REDSAW]

I always go 10mm over so 25mm for 15mm and 32mm for 22mm that way. If you do need to sleeve it then you know you've got enough room and also if your hole is slightly out (which is never the case with any of us in here) then you can sometimes get away with it as you have more room to manoeuvre. Anything bigger then it's core drill time personally

why not just take the whole brick out?

bit sloppy for me i would rather drill a tight hole!

 

[tamz]

Against a packet of **** for perspective

 

[RocknRolla]

What length bits do you guys use? its not the diameter i find the problem with its the length of the bit. Im looking at buying 3 new bits for each size pipe but not sure if i should go with a 450 or 600? any suggestions?

 

[village idiot]

Buy both. But if you must buy just the one, but the 600

 

[dancinplumba]

Buy both. But if you must buy just the one, but the 600

Definitely logic in this answer