40 years ago, my father purchased directly from the mining company he was working for in Niger some diamond blade. He also have the chance to buy the machine but sold it because the machine works with a 360 volt.
We still have three blade from Diamant Boart SA, brussels Belgium.
I can read on the packaging this: bursting test 250 LBS per SQ inch !!! The diameter is 30 cm and the axe hole is 16 mm.
Does anyone have any idea how to use this blade? What machine cans be usefull?
Do you think that a 40 years old blade can be dangerous?
I read with lot of interest the information given by knowlegeable cutter because i would like also start cutting and polish stone. Do you think, i still can use this blade.
Others may reply here with better information than mine. Your diamond blades should still work fine. They should work on any rock saw that can be fitted with them or one you make yourself. If you make one yourself you will have to learn the fundamentals common to any rock saw. You will also need to make sure that the blade is lubricated with some sort of oil or petroleum product, even kerosene. They should not be used with a water lubricant which will reduce considerably the life of your blades.