12 Clock Keys Two 5 Pronged Winding Tools Sz 3,5,7,9,11 One size 5 clock key with a 1.75 mm hole and a 4 mm hole One size 5 clock key with a 1.95 mm hole and a 4 mm hole Size 3, 3.00 mm Size 5, 3.50 mm Size 7, 4.00 mm