Lapping Plates & Rings » New & Refurbished Products » Accessories & Consumables » Lapping Plates & Rings Lap Plates for Speedfam Double Side > For models 9B-5, 12B-5, 16B-4. 16B-5, 18B, 20B, 28B Read More New Ring + Sun Gears for Speedfam Double Side Laps & Polishers > For models 9B, 12B, 16B, 18B, 20B, 28B Read More