The Sia 1944 SiaOne 15H Discs are high-performance abrasive sanding discs designed for fine surface preparation in automotive refinishing tasks. With a P500 grit rating and 150mm diameter, these discs are ideal for intermediate sanding work, ensuring smooth and consistent results on paint, filler, or primers. The multi-hole (15H) configuration enhances dust extraction and extends disc life, making them efficient and clean to use in high-demand environments.