
Expanding Mandrels | McMaster-Carr
Expanding-End Mandrel One 5/8" OD × 5/8" Shank Dia × 3" Lg. Expanding-End Mandrel One 7/8" OD × 7/8" Shank Dia × 4" Lg. Expanding-End Mandrel Stand: 0.002" Steel: 0000000: 0000000: Wide-Diameter Range Lathe Mandrels . The sleeve on these mandrels expands to hold a range of IDs for better versatility than solid and expanding-end mandrels.