PDA High Performance Diamond Cutting Disc from © 350mm - 0600mm for Reinforced Concrete, ® Arbor Hole 27mm/25.4 mm The saw blade has been manufactured by laser welding process, and this ensures the integrity of the segments and increases the life of the product. It achieves very high durability and resistance to wear, which reduces the amount of maintenance and replacement required The PDA technology used in the manufacture of our diamond cutting discs offers some significant advantages over conventional technologies. Through a special arrangement of diamond segments, PDA technology enables a faster, smoother and more consistent cut to be achieved. This increases the efficiency of the cutting process and reduces the number of adjustments and rework required. It allows for the higher speeds and tougher conditions without loss of performance and durability.