It's time again to replace the blade on my 12" Lortone slab saw.
There seems to be a great discrepancy between different brands of
blades ($59.00 to $249.00)
Has anyone had any experience with the cheaper blades like the ones
Daniel Lopacki sells?
If you are using your 12" Lortone for strictly slabbing then Daniel’s
blades will work for you. They have a thin kerf (blade thickness) so
there is less rock loss from cutting. If you are using your saw for
sizing larger material, like cutting big rocks in half, then Daniel’s
blades might not be the best choice. With Daniel’s blades, like most
inexpensive diamond saw blades made in China, the diamond and
whatever metal contains the diamond is pressed into grooves stamped
into the edge of the saw blade. This method does not cut a wide
enough kerf, when cutting down the middle of a big rock, for the rest
of the saw blade to get through and causes friction along the body of
the blade causing the blade to overheat. That will make the blade
steel lose its temper and begin to dish or wobble.
If you are cutting big rocks down the middle then you are better off
paying the extra bucks for a heavier duty blade where the diamond
matrix is formed along the edge of the blade.
I have bought blades from Daniel Lopacki and have for the most part
been satisfied with them. Daniel is a great guy to work with and
Silversmith and Lapidary Artisan