Biopowered - vegetable oil and biodiesel forum
General => Chatter => Topic started by: Tony on August 19, 2013, 11:08:11 PM
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Rather than chain drilling, will this do it?
http://www.ebay.co.uk/itm/50mm-2-Inch-BI-METALLIC-HOLESAW-Free-Delivery-/150798553098
I need to make a 2" hole to weld a 2" bsp nipple over, and it probably could be used for 2 1/4 bsp immersion holes too?
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How thick and hard is your steel?
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Probably 2mm, and not tried drilling it so not sure how hard. It's a tank though so not expecting it to be particularly tough. I have cutting compound that I use for pipe threading to assist with the cut.
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How thick and hard is your steel?
It probably depends if it's first thing in the morning or not,
Or he's been picking up a new bio storage tank from a minor celeb,
Or if he's been doing a pump search on ebay.
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Yes it will work but lots of lubricant.....i use those cutters alot for my electrical and plumbing work.
I used 1 to cut an immersion boss in a 205 drum with great success although they do get a tad warm if you go in dry!! ::)
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How thick and hard is your steel?
It probably depends if it's first thing in the morning or not,
Or he's been picking up a new bio storage tank from a minor celeb,
Or if he's been doing a pump search on ebay.
Trust you to lower the tone!
Any way he probably wants to lube it up before attempting the hole!
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I've used (abused!) those cutters going through 35mm steel plate. Slow going, but lots of pressure and lube and it'll do it.
Just don't spin it too fast - a battery drill on the 'screw' speed is plenty fast enough. Any faster and you'll just melt the tips on the cutter.
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It will probably do the job use the slowest speed on your drill with a good cutting oil
motor oil will not do as it contains ante friction additives
I always buy starrett hole saws cost a bit more but they last a long time
it just depends how many holes you you need to cut good tools are cheaper in the long run
Richard
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It won't need to do many cuts. I have proper cutting compound, Trefolex - it's very good stuff. So, sounds like slow and steady is the way to do it? Can't be any slower than chain drilling lots of holes and filing.
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Plasma cutter.
Fantastic for the job.
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Yeah I bet...
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Well if we're going for ridiculous options, then a CNC laser/waterjet cutter would probably be the best thing.
However, for the cost, you can't really beat a hole saw.
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theres no guide drill in the center?
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Well if we're going for ridiculous options, then a CNC laser/waterjet cutter would probably be the best thing.
However, for the cost, you can't really beat a hole saw.
Jim's is not really a ridiculous option though - plasma cutters are quite easy to come by these days. We know Jim has one as it was a very popular toy at the BBB. I can see that it would make cutting a two inch hole in virtually anything a very easy job
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theres no guide drill in the center?
Yes there will be - those cutters fit a standard arbor (the centre drill bit). I have such a thing already.