of countersinks and centre-punches

PeterC · 2010-06-22T13:01:25+00:00

Using (or trying to) various countersinks on chipboard flooring, mostdidn't do much and one that did work got very hot and took about 30s perhole [1]Without spending a fortune, are there countersinks that will cut variousmaterials without setting fire to them? (I have both fluted and 'snail'type and they're OK on ordinary wood).Centre punches: could do with something that will handle steel and staypointy [2]. Also need pin punches that don't bend too easily.I've looked at SF and TS; they have largely sets, which I don't mind ifthey're good. Axminster's countersinks seem to start at dearish and go toFO![1] Solved it for chipboard by blipping the hole with a slow, 10mm masonrybit then finishing with countersink. Care needed, as masonry bit reallychews off the surface.[2] Perhaps a bit unfair using a small punch to unscrew the front plate ofa freewheel, especially starting the wrong way 'til I remebered it was LH!

Jun 22, 2010 20 Replies

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of countersinks and centre-punches

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