The high level of efficiency of the S Performance sanding discs from sia Abrasives is the result of an optimised hole pattern. The high concentration of holes in the core zone increases the extraction performance, which reduces dust exposure for employees and accelerates the cleaning of work pieces and machines. Moreover, it also reduces the risk of blockage for the disc, which significantly increases the disc’s lifetime and removal rate and reduce life-cycle costs as well. The center hole on the new sanding discs facilitates the positioning of the disc on the machine, and makes it possible to mount it without any issues. This new convenient feature is the response to a frequent request from users.