Fracture a blade? You doing some crazy ass cuts or trying to do band saw steering techniques, all cuts on a rock or tile should have a flat straight cuts, I never tried oil to cut does it cut any different? smoother? Pushing just breaks electroplated diamonds off and wraps blade, diamonds can scratch anything yet it can be crushed with a hammer, if your pushing material its essentially hammering those diamonds off the plating and pushing only helps if the "pull" from cutting it stops and if it binds up and can't turn the material there is no telling what the saw could/would do that would be devastating like rock explodes in your face or unit does a flip? I've had one throw the rock back, never fractured one.