4pc Pin Vise Set, Chrome Finish. Will hold various bits from small drill bits sized 61-80 to 1/8 inch Dremel bits for use by hand. They are sized; 0 to 3/64 inch , 1/32 to 1/16 inch, 1/16 inch to 1/8 inch, and 1/8 inch to 5/32 inch. They have hollow handles so that they can be used to work with wire.