Metal bond grinding grit

SPR’s MB-G10 is a high-quality, friable but economical abrasive that’s ideal for use in a variety of resin bond applications. It’s perfect for low-impact, high contact area processing such as rubber cut-off wheels and resin bond stone polishing tools. Designed for both metal and resin bond systems, it’s highly effective for abrasive tasks like solid polycrystalline cubic boron nitride (PCBN) grinding and gemstone scaifing.

SPR’s MB-G30 ensures consistently sharp edges and optimal abrasive strength for use in metal bond tools where low abrasive strength is required. With its exceptional friability, the MB-G30 is also perfect for some Ni-coated resin bond applications. The MB-G30’s versatility, impact resistance, and ability to continuously generate new cutting edges make it an excellent choice for grinding hard materials. For electroplated tool applications, such as metal bond honing and dental burrs, MB-G30 boasts the perfect balance between free-cutting action and extended tool life. MB-G30 is also ideally suited for fired tungsten carbide grinding.

MB-G40 features a consistent blocky crystal shape, perfect for less demanding applications where sharp cutting characteristics are important. The nickel-coated variation, MB-G40 Ni, is particularly well-suited for grinding tungsten carbide and steel. Whether you need to enhance durability or precision, consider MB-G40 for your abrasive needs.

The MB-G60 is a medium quality, semi-crystalline, blocky shaped crystal with exceptional toughness and thermal stability. It exhibits higher friability and improved surface texture than the MB-G70, producing a free cutting crystal that regenerates new cutting edges with moderate grinding force. This metal-bond product is ideal for low force grinding of glass, quartz, and carbide, less severe pencil edging, semi-finishing of flat glass, beveling of furniture glass and mirrors, cut-off wheels for glass and quartz, and ferrite grinding.

The MB-G70 diamond boasts high thermal stability, uniform shape, and superior impact and fracture strength. Its tight distribution of crystal shapes and strength enhance extended tool life, uniform wear, and excellent free cutting capability. This premium, thermally tough diamond is ideal for core drilling of glass, decorative grooving of crystal or glass, OD grinding of Si3N4 wear parts, and PD grinding of crystal.

The MB-G80 presents excellent cubo-octahedral crystal shape, high impact strength, and remarkable thermal stability, ideal for high volume and demanding applications. With superior thermal and shock resistance, the MB-G80 guarantees efficient grinding and high material removal rates. Excellent for applications such as ferrite motor core and tungsten carbide button grinding as well as high-performance pencil edging.

Our MB-G90 product is our best standard grade monocrystalline cubic and octahedral boron nitride. It boasts uniform shape, minimal internal impurities and excellent thermal stability, making it ideal for demanding and precise applications. This high-toughness material achieves new productivity heights in applications such as electronics and pencil edging of automotive glass.