LE-520,LE-620 Rough grinding wheel for CR , PC,Glass lenses,Bevel "V" groove wheel,polishing wheel for Auto lens edger - AliExpress
Amazon.com: CAQUXIL CBN Grinding Wheel 6" Dia x 1" Wide, 1 inch Arbor, Sharpen High Speed Steel Cutting Tools, Diamond Grinding Wheel Grit #1000 : Industrial & Scientific
V Groove Optical Diamond Wheel(125x20x3mm)
Diamond Grinding Wheel, V Shape, 6″x1″ – Jade Carver
V Groove 150Ø Diamond Wheel 22bore - Vetro Tooling Ltd
Amazon.com: TECHTONGDA Lens Grinder Hand Lens Edger Eye -Glasses Hand Edger With V-groove 110V Manual Lens Edger Polisher Grinding Single Wheel Grinder Optical Hand Stone : Health & Household