Outstanding lifespan in stone! Laser-welded segments: the strongest connection with the steel core. Diamond cutting discs have made working with stone easier than ever before. However, a good building block is a challenge for your equipment. Masons working with stone today benefit from the PRO Stone, a diamond cutting disc with excellent lifespan and outstanding cutting performance. The durability of the PRO Stone is based on advanced design and high-quality materials. The diamond segments of the disc are laser-welded. Its low-friction design allows it to remove dust from the cut, thereby preventing wear on the side of the disc.