Application: to retain bearings on tools Furnished with upper ball bearing guides. Collars include #67091 set screw., #47724, use w/ tool No. 45460, 45461, 45462, 45464, 45750, 45850, 45950, 45, Face thickness .203 (13/64), outer diameter (OD) 7/16, inner diameter (id) 1/4, 47724 retaining collar 7/16 overall DIA x 1/4 inner DIA