$67.99 Dremel MM501, 1/16, Grout Removal Blade, For Multi-Max Tool New | eBay
Dremel Multi-Max 1/16 in. Grout Removal Oscillating Tool Blade-MM502 - The Home Depot
Richard Replacement Grout Remover Blade - White - High Carbon Steel - 1 3/16-in Blade L 05515 
