لوحة دعم توربو من المطاط الأسود الفاخر والألمنيوم 4 1/2 × 5/8 بوصة (R425)

The 5/8" arbor fits my grinder perfectly, no adapters needed, and the rubber face grips the disc firmly with zero wobble. I've put it through a few heavy sessions already and the aluminum hub is holding up great without any heat buildup.

The aluminum core keeps it light enough that my grinder doesn’t feel unbalanced, and the rubber face grips the disc without slipping mid-job. Swapped out my old plate in minutes since the 5/8 smooth bore fit perfectly.

Finally got this to replace a worn-out backing plate, and the aluminum core keeps it from flexing under pressure, really smooths out the grinding. The 5/8 thread fit my grinder right out of the box.