liam.mccaffrey
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| posted on 15/3/11 at 08:47 AM |
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Metal Cutting Holesaws
Can anyone recommend, from where I can buy good quality metal cutting holesaws?
Thanks in anticiaption.
[Edited on 15/3/11 by liam.mccaffrey]
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balidey
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| posted on 15/3/11 at 09:24 AM |
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My company uses LOTS of metal holesaws. We only ever use Starrett
http://www.starrett.co.uk/
Local engineering supplies company should be able to source them for you.
Dutch bears have terrible skin due to their clogged paws
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Davey D
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| posted on 15/3/11 at 09:27 AM |
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I use the Bosch Progressor Hole saws. Great quality, and never had one fail on me. They are quick release too so if you are doing a job where you need
multiple sizes you can change the cutter in a matter of seconds
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mrwibble
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| posted on 15/3/11 at 10:29 AM |
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i'm interested in these, i currently use a 25mm wood bit on 2mm ali sheet, i'm sure this isn't good practice, but if done gently and
with plenty of lube it has made some tidy holes.
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David Jenkins
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| posted on 15/3/11 at 10:42 AM |
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What thickness, and what material? Many different sizes, or just 1 or 2?
I have a few Starrett hole saws, and they are good. However, don't expect them to make a hole exactly to the stated size - it is likely to be
slightly over-size (certainly in my experience, anyway).
If you're only talking about sheet metal (around 1.5mm or less) then consider Q-Max cutters - very precise, easy to use, but high initial
outlay.
[Edited on 15/3/11 by David Jenkins]
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liam.mccaffrey
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| posted on 15/3/11 at 11:04 AM |
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the application is my medford tools notcher, linky
I have various CDS tubes I want to notch. Including 1.75" and 1.25" initially both 1/16" wall
[Edited on 15/3/11 by liam.mccaffrey]
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tegwin
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| posted on 15/3/11 at 11:13 AM |
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I have a box of wholesaws from axminster... my 80mm has happily chewed though 2mm mild steel plate... Its only now needing to be thrown away after
burning out cutting a hole in a countertop...
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David Jenkins
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| posted on 15/3/11 at 11:27 AM |
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quote:
Originally posted by liam.mccaffrey
the application is my medford tools notcher, linky
I have various CDS tubes I want to notch. Including 1.75" and 1.25" initially both 1/16" wall
Ah - I understand. The fact that a holesaw isn't exactly accurate (though it is close) isn't an issue.
The Starretts come in 2 parts - the saw itself, and the central spindle/pilot drill that holds it. If you're lucky the part that holds the saw
will be common to all the sizes you need... otherwise the cost adds up... 
Just looked at that link - that's a hell of a work table he's using there! 
[Edited on 15/3/11 by David Jenkins]
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liam.mccaffrey
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| posted on 15/3/11 at 11:59 AM |
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My notcher has a threaded nose to accept the saws directly and a threaded adapter to change between variou sizes.
Is that what you meant?
quote:
Originally posted by David Jenkins
quote:
Originally posted by liam.mccaffrey
the application is my medford tools notcher, linky
I have various CDS tubes I want to notch. Including 1.75" and 1.25" initially both 1/16" wall
Ah - I understand. The fact that a holesaw isn't exactly accurate (though it is close) isn't an issue.
The Starretts come in 2 parts - the saw itself, and the central spindle/pilot drill that holds it. If you're lucky the part that holds the saw
will be common to all the sizes you need... otherwise the cost adds up...
Just looked at that link - that's a hell of a work table he's using there!
[Edited on 15/3/11 by David Jenkins]
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britishtrident
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| posted on 15/3/11 at 01:34 PM |
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The orange ones B&Q sell are as good as a Bosch I have used them up to 60mm dia and they cut mild steel no problem just use a slow speed and
cooant. To cut a 60mm hole in steel bodywork for an LPG filler I used a chuck adaptor in my 1/2" drive Cordless Impact driver so I got a
slower speed.
[Edited on 15/3/11 by britishtrident]
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tony-devon
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| posted on 15/3/11 at 03:22 PM |
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the bosch cobalt powerchange ones are very good, I resorted to using a 25mm one to drill through some 1" steel plate LOL, not the ideal, but as
my only tools are cordless drill and..... thats it, I had no choice, 1" drill isnt going to fit in anything I had to hand
great tools, very impressed with them, got mine from screwfix
heavy is good, heavy is reliable, and if it breaks, hit them with it
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