Quantcast

Recommend Me A Step Drill Bit

Aussie Home Brewer

Help Support Aussie Home Brewer:

brad81

Well-Known Member
Joined
10/4/12
Messages
555
Reaction score
93
Location
Palmerston, ACT

NickB

I haven't had a C**t all night, Drinkstable....
Joined
29/6/06
Messages
4,436
Reaction score
191
Personally, I've had zero luck with those step bits. Some people swear by them, I just swear at them.

Get yourself a good quality hole saw or hole saw kit with a decent arbor and you'll chew through the aluminium with very little burring as long as you use a suitable lubricant (WD-40 is what I've used).

Cheers
 

brad81

Well-Known Member
Joined
10/4/12
Messages
555
Reaction score
93
Location
Palmerston, ACT
I'm trying to keep my outlay to a minimum mate, if I can get this for under $50ish, then I can handle some swearing. Thanks for the tip on the WD40, seen it mentioned a few times already. That stuff is liquid gold.
 

Wolfy

Well-Known Member
Joined
18/12/08
Messages
3,872
Reaction score
64
Location
Melbourne
I'm trying to keep my outlay to a minimum mate, if I can get this for under $50ish, then I can handle some swearing. Thanks for the tip on the WD40, seen it mentioned a few times already. That stuff is liquid gold.
A TCT holesaw from KegKing will cost about $30, they cut through stainless with ease as per: http://www.aussiehomebrewer.com/forum/inde...st&p=918973
So I'm sure they'll have no problems with your Aluminum pot, and likely last a lifetime.
 

Logman

The most interesting man on AHB
Joined
24/1/11
Messages
835
Reaction score
54
Location
Worongary, Gold Coast
Definitely some varied results with these - I've been lucky with one from Bunnings, done at least 6 keg holes and 5 other stainless holes and it's as good as new. Never use any lubricant either. I use a battery drill so it's not to powerful, maybe that's the trick....
 

NickB

I haven't had a C**t all night, Drinkstable....
Joined
29/6/06
Messages
4,436
Reaction score
191
Any decent brand hole saw from masters/bunnings should be under $50 and will last forever.

Did buy one of the keg king hole saws, but the shaft was bent slightly. Never used it and returned it for a better brand.

Cheers
 

breakbeer

Well-Known Member
Joined
31/1/12
Messages
1,027
Reaction score
263
I've been using a $26 step bit from the big green shed & it works a treat. 30mm hole for the element took just over 5 minutes

Low speed, moderate pressure, drill a pilot hole first & use cutting fluid.

Admittedly I've only drilled 4 holes with it so far, but it seems to be holding up well

IMG_1176.JPG
 

pk.sax

RIP bum
Joined
19/8/10
Messages
4,362
Reaction score
415
I'd cut mine with step bits with no lube. Of course I cursed a lot! Was cutting a mate's last weekend and he had SS cutting paste. Made a world of difference. I got a set of cobalt coated bits off eBay USA.
IMO, what they suck at is cutting large holes as the more the material you have to cut, the more heat they generate. Getting to 1/2" in Al should be a piece of cake!
 

brad81

Well-Known Member
Joined
10/4/12
Messages
555
Reaction score
93
Location
Palmerston, ACT
Well the hole saws sound the goods. So I can safely get away with a 20mm, and I already have a dremel.

Thanks for the links all!
 

b0neski

Active Member
Joined
28/2/11
Messages
42
Reaction score
0
Hey slightly late chip in here Brad but I reckon you're on the right track with the step drill through aluminium it'll go through like butter and deburr most of your hole too.
Wouldn't bother with cutting fluid on a hole that small in aluminium.
FWIW I've got one of these from Bordo. It cost over $100 and has done a LOT of work. Cuts like the day I bought it - just remember to let the drill do the work, don't force it.
 

seravitae

Well-Known Member
Joined
4/2/09
Messages
824
Reaction score
8
Bought a step drill bit from bunnings (not sure what brand, blue body), cuts fine through SS and ally. As most people have said, go slow, real slow, and use cutting fluid.
 

TidalPete

BREWING BY THE BEACH
Joined
2/8/04
Messages
5,182
Reaction score
480
Location
Sunshine Coast, Queensland
Well the hole saws sound the goods. So I can safely get away with a 20mm, and I already have a dremel.
Thanks for the links all!
Step drills & hole saws are good for lots of stuff but if on a budget or not mark out the hole on your aluminium\ss pot in pencil, centre-pop the centre & circumference, then drill out with the biggest bit your drill will take (1\2"??).
Get yourself an appropriate-sized half-round second cut file & file to the marks, remove burrs. Too easy!
Powertools aren't always the answer.

TP
 

brad81

Well-Known Member
Joined
10/4/12
Messages
555
Reaction score
93
Location
Palmerston, ACT
Yeah, but Pete, I have one pot. I'd rather not faff it up.

I am not that handy (neither are most of my mates). I can add this one to the budget, because I can ensure it's done properly.

I'm sure given a few years to build confidence, your solution would be more appealing B)
 

dicko

Boston Bay Brewery
Joined
11/1/04
Messages
3,393
Reaction score
576
Step drills & hole saws are good for lots of stuff but if on a budget or not mark out the hole on your aluminium\ss pot in pencil, centre-pop the centre & circumference, then drill out with the biggest bit your drill will take (1\2"??).
Get yourself an appropriate-sized half-round second cut file & file to the marks, remove burrs. Too easy!
Powertools aren't always the answer.

TP
Spoken like a true (if not more senior) fitter. :lol: :lol:

Cheers
 

seemax

Well-Known Member
Joined
9/4/08
Messages
1,199
Reaction score
5
I used some old spade bits to make various holes in aluminium ... i wouldn't recommend it !!
 

Latest posts

Top