Bon Tool Touch-Up Joint Wheel - Convex 1/4-inch by Bon Tool Sold out $22.90 | / SKU 32-275 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out 1/4-inch Convex Grouting Wheel Use these wheels for “touch-up” of grout lines Sanded has sand pattern, others are smooth