help needed with choosing laps

rough2cut said:

Any chinese plated lap over 1200 is useless. Go course 180,360,1200. Instead of two more unneeded laps get a copper lap instead and 3000 compound. Or you could place an order with me for a set of sintered discs to make my Xmas.

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Dughug said:

Ozjono,

you haven't mentioned what you will be using the laps for - cabbing or faceting.

If you are going to be aggressively forming your stones I'd consider a coarser one (180 0r 220) in lieu of the 1800 . Don't forget that the coarser laps damage internally the stone that will present problems at a later pre-polish/polish stage.

Your choice of laps seems that it would cover most situations.

Your laps won't have an unlimited lifespan so be prepared to replace them every so often.

There are reasonably priced laps from China on Ebay that could almost be deemed disposable - their cheap enough to throw away and replace every year or so.

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