PRIMARY USE:  Polishing with 50-200K diamond.

SECONDARY USE: Prepolishing, fast and perfectly.  3K diamond is usually used.

Last Few Years: People are using them to CUT.  Will not load up or foul when cutting quartzes.

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The product that started it all here.


The BATT™ is the standard for tin alloy laps. With more than 8,000 sold, it has established itself in Commerce and Competition time and again. A SOLID cast tin alloy lap, with two usable sides, it still sells for significantly less than many commercial rolled tin laminated laps.

A BATT™ lap charged with 3,000 diamond (Or 8,000) provides a perfect pre-polish after cutting with 600, with a surface good enough to allow subsequent polishing in record time, on stones from Fluorite to Sapphire.

A BATT™ lap charged with 50K or finer, or an oxide/ Darkside for the quartzes, promptly finishes the stone.

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