Accidental gouges, contamination with the wrong grit, in one case, bad cooling water with sand in it, and in another, a worn-out prepolish lap had thrown loose diamond all around the machine!
BATT Laps, as with any other polishing lap, are intended for maximum diamond retention...So naturally, if a contamination accident happens, they will "do their job", and retain the contaminant!
This is where the advantage of a solid cast lap shows up! Rather than discarding them, they can simply be resurfaced, many times. I have had people return laps for resufacing after ten years of use. They end up with what is essentially a "New" lap, just .040-080" thinner. If the lap is more than five years old, it will actually be returned with a better finish than when it was new, because I switched to diamond turning tools a few years ago. Thus, the BATT™ lap probably has the lowest cost-per-year than any lap on the Market.
Things happen.
Look at that finish on a beat-up old lap!
Send the damaged lap, with $44.00 (This will INCLUDE return shipping to you!) and I will try to turn it around quickly.
EMail me in advance so I can schedule a resurfacing session, and give you a shipping address and maybe I will be able to do more than one at once.
If I can, it removes the expense of setup for second or third laps. Any lap after the first lap is only $20.00
(The lathe and Miller are usally set up for something else, and need to be broken down and set up for the resurfacings.)
A few months ago, someone showed up with a SUITCASE full of them. He's no fool!
OTHER LAPS: Yes, I will resurface other metal or polymeric laps...It uses the same tooling,and the labor is the same.
Some old copper laps will have to be taken on a "Best Effort" basis, though. Some of the older alloys have been serious problems.
NOTE: Sorry, NO LEAD or Lead/Tin solder laps. I manufacture lead-free products here. The penalties for improper lead disposal are too severe to take that chance.
BATT™ is designed to be a work-hardening alloy, so that it wears well and entraps diamonds.
I have also had a few returned in this condition under my (generous) warranty. I am proud of the title of my warranty page, but this has to start working in both directions, to be fair.