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| Author: | Dennis [ August 15th, 2014, 12:07 pm ] |
| Post subject: | Cutting circular holes |
This is a pretty sad question, but .... I want to instal a USB outlet on the dash of the H-van (for Satnav). The outlet needs a surprisingly large circular hole - about 3cm across - and ideally with a couple of flats to stop it turning, but I could manage without them. Can anyone suggest how to cut a neat circular hole in thin steel at that sort of diameter? It looks like a lot of work with a file. Is there any other tool that might work? |
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| Author: | samfieldhouse [ August 15th, 2014, 12:50 pm ] |
| Post subject: | Re: Cutting circular holes |
http://www.screwfix.com/p/titan-holesaws-15-piece-kit/93131 |
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| Author: | ayjay [ August 15th, 2014, 3:46 pm ] |
| Post subject: | Re: Cutting circular holes |
http://www.amazon.co.uk/s/?ie=UTF8&keyw ... b85hwug5_b |
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| Author: | Geert [ August 15th, 2014, 3:47 pm ] |
| Post subject: | Re: Cutting circular holes |
You'll need this : http://eshop.wurth.nl/Gatenpons-STEMPEL ... qc2jfJAruS I don't know the English name for it, but it is a very usefull tool. I used this stepdrill several times, but I prefere this würth-thing . |
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| Author: | ayjay [ August 15th, 2014, 5:53 pm ] |
| Post subject: | Re: Cutting circular holes |
thats an exellant tool geert i can,t remember the name of it either ive used them in the past when making holes in control panelsfor the insuments to fit into |
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| Author: | Dennis [ August 15th, 2014, 5:59 pm ] |
| Post subject: | Re: Cutting circular holes |
I'm spoiled for choice! I already have some of the circular cutters for wood/plaster, but I had no idea they were available for metal too. Is the stepped drill something that's easy to use? I can just see myself being a bit enthusiatic and making the largest hole immediately. Geert - I'm sure the Würth hole cutter is a really nice piece of kit, and accurate too, but Würth don't seem to want to sell it online to individuals, only companies. I'm not likely to use it very often, either. |
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| Author: | ayjay [ August 15th, 2014, 8:06 pm ] |
| Post subject: | Re: Cutting circular holes |
the stepped cutter/cone cutter is a piece of cake to use i have one in my toolbox its very easy to control and cuts a pefect circle on flat metal try getting one from an electrical wholesaler thats where i got mine the ordinary holesaws have too coarser teeth imo so not so good |
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| Author: | Sean [ August 15th, 2014, 9:01 pm ] |
| Post subject: | Re: Cutting circular holes |
Geert, known as a "Tank Cutter" ( for cutting burr free holes in water tanks etc) |
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| Author: | Geert [ August 15th, 2014, 9:11 pm ] |
| Post subject: | Re: Cutting circular holes |
tha , Sean ! |
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| Author: | Russell [ August 16th, 2014, 9:25 am ] |
| Post subject: | Re: Cutting circular holes |
The only tool for cutting perfect circular holes without distortion, swarf or risk of any sort is a Q-Max cutter. Holesaws are almost always rubbish and almost never produce an accurate hole. Stepped drills are better but are inclined to leave a lot of swarf and both heat the metal up and can distort it. A Qmax cutter is basically the same as the Wurth tool, but freely available. I can't recommend NOT using a holesaw enough. Horrible things! Search Q-Max cutter on amazon or eBay. |
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