National Diamond has been a leading US manufacturer & distributor of diamond saw blades, Concrete cutting blades, diamond concrete blades, diamond core drill bits, asphalt cutting blades, tuck point blades, turbo blades, loop blades, diamond cup wheels, diamond polishing pads,and other specialty diamond cutting, grinding, finishing and polishing tools for over 20 years. Our engineers have broken down to a science the way we design our diamond tools. Our company continues its time honored tradition in supplying the industry with the best diamond blades and other diamond equipment available at the most reasonable pricing.