The Dandy Die Series covers most mid-range sized instrument openings. All Dandy Die Series die sets s require either the DD-Puller (hydraulic use only) or DD-Puller-U (hydraulic or manual) adapter. These pullers may be used manually, with our CYL-201 or CYL-205A cylinders, or with any industry standard ¾” -16 stud based puller.