This 240mm rotary bush hammer plate is specially designed to be used on Klindex floor grinders, for different applications: to texture/bush-hammer the surface of stones like granite, marble, and others. to create non-slip safety surface on floors of stone, concrete, and others. to remove coatings like varnish, glue, paint, resin, etc. for floor preparation, usually in combination with normal diamond tools. This klindex bush hammer plate is specific for: Expander 1000 Expander 850 Expander 750 Expander 650 Expander 580 Levighetor® Max Hercules 800 Hercules 650 Hercules 600 Rotoklin 240   The working part of a bush hammer tool is the carbide. So, the quality of the carbides is very important. There are some different carbides grades sold on the marketing - YG6, YG8, YG10, etc. After being tested, Sunny Superhard Tools found that YG8 is the proper grade to be used on bush hammer tools, based on the performance and price. The following is the comparison of the physical parameters between YG6 and YG8 tungsten carbides:   China Code Corresponding ISO Code Parameters Density  Bending Strength Hardness G/Cm3 N/mm2 HRA YG6 K20 14.7-15.1 ≥1670 ≥89.5 YG8 K20-K30 14.6-14.9 ≥1840 ≥89 Sunny Superhard Tools uses high quality original YG8 tungsten carbides on our bush hammer tools, while some suppliers may be used low-quality recycled carbides(They will tell you that the carbide grade they used is YG8, but won't tell you that it's recycled). Exploded Drawing of Sunny Bush Hammer Head (30Teeth) BHP19