Norton lapping

If there is no gap then it needs the coarse paste lap on these faces only. Lapping is not easy. Add only a tiny amount, use oil as a lubricant. Quarter turns, keep lifting, rotate a quarter after 15 seconds, stop after one minute, wash all thoroughly in paraffin, measure.

I looked at a Vincent head and barrel for a friend that he had been lapping. There were absolute variations of seven thou between the lowest and highest points on the barrel outer and three thou on the spigot to head. It blew like a sieve. I re-machined both in a mill, but you need a whole set of jigs to hold both items. It took me two days to make the jigs and four hours to recut the faces. I did quite a lot of machining for the gearbox and cambox, and spent longer making jigs than I did doing the jobs!

As we have someone fairly local who will already have the jigs, I'm happy to pass this job onto someone else. The Norton Owners Club Limited. Registered in England No. VAT Reg No Norton Owners Club. I work the sharpening stone over it until pencil lines are gone. Usually takes less than 2 minutes.

I flatten stones after every other plane blade sharpening. This is a much better way to flatten your water stones than a piece of glass and sandpaper.

Highly recommend. Diamond stones are much faster. I used this stone to flatten 6 very badly hollowed stones I inherited from my father and it works but it's alot of work. The grooved surface does make it more fragile if you're not working on a flat surface so find one and place some padding underneath the stone.

I saw some critical reviews of this product which almost lead me to not purchase it. They seem to me totally unfounded. This tool works just fine. Yielded a very flat stone with a decently smooth surface and worked efficiently. I do not recomment this stone for flattening. I have used this stone several times and have always noticed that it humps up the middle of my sharpening stone.

The problem is that it tends to roll from side to side as you push it back and forth. I use hand planes all the time and I need my shapening stone to be flat so that I get a good edge on the plane blade. I do, however, like to use the back side of this stone to get rid of nicks and dips in the edges of plane and chisel blades.

I would not get this to use as a flattening stone, instead get a diamond or granite plate, not as cheap, but better in the long run and more for the money. I have used this to grind a chip out of a 2 inch blade, It does dish out quickly.

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On October 04 Norton offer a complete range of high performance film backed abrasives for Microfinishing and Lapping operations.