Pulley fits a 5/8" diameter keyed shaft. Both a square and a woodruff style key is included. Will fit many 113.xxxxx model series Craftsman 10" Belt Drive table saws including: 11327520, 11327521, 11329943, 11329960, 11329991, 113221060, 113226830, 113290060, 113290600, 113290650, 113298020, 113298030, 113298031, 113298032, 113298034, 113298140, 113298141, 113298142, 113298150, 113298151, 113298210, 113298240, 113298470, 113298720, 113298721, 113298722, 113298760, 113298761, 113298762, 113298840, 113298841, 113298842, 113298843, 113298844, 113299040, 113299112, 113299120, 113299142, 113299315, 113299410, 113299510