Compared to other ceramic tile/marble bits on Fepy, the CYL-9 emphasizes a carbide tip and an optimized tip design for marble-friendly penetration. For alternatives, you can explore other Bosch cylinder-style tile bits such as the CYL-8 and CYL-10 to suit different diameters and project needs. See: Bosch CYL-8 Ceramic Tile Drill Bit:
https://fepy.com/product/bosch-cyl-8-ceramic-tile-drill-bit and Bosch CYL-10 Ceramic Tile Drill Bit:
https://fepy.com/product/bosch-cyl-10-ceramic-tile-drill-bit