Fits ONLY the Ken Onion Edition of the Work Sharp Knife & Tool Sharpener * These premium grade, engineered abrasives are long lasting and designed for knife & tool sharpening and grinding applications * Belts are 3/4" x 12" (except 6000 Micro-Mesh: 1/2" x 12") and do not fit other Work Sharp tools or accessories. Does not fit WSKTS