22mm hole

[samurai]

I need to drill a hole 22mm for the FIA battery cut off switch,where and how do i got hold of a drill that size and 10mm is the biggest my drill can take maybe alittle more but not 22mm?

 

Thanks

[Vista]

Use a hole saw, it's a normal drill bit in the centre, but has a large rotary saw around the outside of it, they're avalailable in that size.

[mk1mexico]

Yep as above mate i just used a 44mm one to put a hole in my bulkhead for the new loom and ecu plug to fit through

[Danmex]

Yeah they are, not trying to insult you but make sure you get a metal cutting one cos you mostly only see wood cutting ones, the metal ones arn't to easy to get hold of

[60ftman]

You could use a step-drill or cone-drill. These use a 10mm(ish) shank, and cut from small to large. (The things you always see them using in American Chopper). Bit more expensive than the hole saw, but at least you can use them for various sizes. Screwfix do them.

 

Good luck

[Pipster007]

Any tool shop should sell them. We use them all the time for cutting holes into electrical panels for conduit

[samurai]

Ive drilled a 10mm hole in its place,will it be ok to use the hole saw now or will it wobble everywhere?

[mk1mexico]

it will wobble everywhere clamp a bit of wood to the back if you can then drill the wood

 

or you could spend half a day with a round file

[Vista]

The point in the hole saw is that the centre drill bit protudes further and cuts first, this locates the hole saw as it bites.

 

You now having a 10mm hole would need either a hole saw with a 10mm centre bit, or a very firm grip! You'll have a tough time getting your 22mm hole accurately central over the 10mm one you've already drilled too.

[samurai]

Wood,good idea off to machine mart tomor morning then.yet another day ive not worked on the car as i have to go with my mate to get his car fixed at a garage,spend all day in there to!

[Tom]

mate i've got a 22mm cone cutter inthe boot of my car and i'm kingston tomorrow morning. pm me if your around and i'll pop round

[samurai]

ill be around till like 9 then im off to get my mates car fixed,what time you thinking of being round?

[Tom]

if you tell me where you are i can be there for 8.30 should only take 2 mins. let me just double check its 22mm, i'm sure it is but it could be 20mm

 

 

 

*runs to car*

[samurai]

PM sent

 

I dont have a drill at mine to,its with my car which is not at mine at the mo.

[Mk2Jo]

if you tell me where you are i can be there for 8.30 should only take 2 mins. let me just double check its 22mm, i'm sure it is but it could be 20mm

 

 

 

*runs to car*

 

 

[samurai]

 

I just had one

[Tom]

yep goes all the way to 28mm

 

took a while cos i ran out of beer on the way to the car and had to come back for more

 

what material am i cutting?

[samurai]

Alloy

[samurai]

Thanks tom for coming round and drilling my hole looks good

[RETRO_AL]

you can buy sheet metal hole punches, you drill a small hole then attach the punch then use a allen key,makes perfect holes,you can get them up to 60mm

i have loads

 

like these http://cgi.ebay.co.uk/RS-CIRCULAR-SHEET ... dZViewItem

[Tom]

no worries bud