Fitting replacement kitchen door fronts

Bought some from B&Q and whilst an excellent buy I am feeling a little miffed as they said all I would have to do is to unscrew old doors and slip on the new fronts - but!!!! The large circular hole, for the hinges, is a couple of inches different from the ones I am taking off. No worries I guess as all I need to do is get myself a template and mark the new positions for the two screws per hinge on the cabinet frames.
The only concern is that the hinge screws which are called 'pan heads' on the screwfix site are not self tapping and seem to be very chunky - 17mm long including the 'pan head' and 5mm thick. So I guess all I need to do is drill a hole less than 5mm (what size would be best) and that is all?
As always any tips would be good.
Ken
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On Sat, 15 Nov 2008 17:30:45 +0000, Ken wrote:

========================================I think you're looking at the wrong screws. Screwfix differentiates between 'pan head' (machine thread) and 'hinge screws':
http://tinyurl.com/6zj8f9
I do a test drill in an offcut but usually 4mm for 6mm screws is about right. It's worth making up a wood block to go on your drill bit to make sure you can't drill too deeply.
Cic.
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You are right as I wrongly identified the type of screws but as I will be using the screws I take out I will need to make sure I get the right sized hole drilled!!! Sorry for being thick but what is a wood block to make sure I don't drill too deeply?
Ken
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On Sat, 15 Nov 2008 20:32:56 +0000, Ken wrote:

========================================A wood block is just a piece of wood (about 3" square) thick enough to only show a certain length of your drill bit when you drill a hole in it. In your case you should have about 10 / 12mm showing through so that you don't drill right through the carcase which is usually about 15mm thick but sometimes 18mm. Mark the position of each hole with an awl or pencil and then drill at the marked positions through the wood block.
Of course if you've got a very steady hand then you won't need the wood block but I find it makes life a bit easier.
Cic.
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