The BF750 Series Diamond blades have a 10.5 mm Diamond rim for speed, precision and for long life. Can be used wet or dry and with hand-held or stationary machines. Ideal for use on:Building materialsConcrete productsGranite and Natural stone Technology Used:Safety: Marcrist diamond products comply with every known safety standard worldwide.Armoured Blade Core: Armoured centre for blade strength. PATENTED.Engineered Core: Precision Engineered core, hardened, ground, balanced and tensioned.Semi-Silent: Noise suppression for semi-silent operation. PATENTED.V-UHP Fusion: Vacuum Ultra High Pressure Fusion Technology used in the Aviation and Space Industry. Segments are formed under a vacuum (to eliminate impurities) and extreme pressure and fused to the core. The result - extreme bond homogeneity and adhesion for outstanding performance and safety.