12 American Clock Keys 2 5 Pronged Winding Sz 2,4,6,8,10

Two Size 4 Clock Keys

This is a new set of 2 size 4 clock keys.

You receive:

• One size 4 key with a 1.75 mm hole and a 3.25 mm hole
• One size 4 key with a 1.95 mm hole and a 3.25 mm hole

5 Sided Clock Key

This is a new 5 sided clock key. It is used to wind clock mainsprings

The sizes are:

• Size 2, 2.75 mm
• Size 4, 3.25 mm
• Size 6, 3.75 mm
• Size 8, 4.25 mm
• Size 10, 4.75 mm

5 Sided Watch Key

This is a new 5 sided watch key. It is used to wind watch mainsprings

The sizes are:

• Size 2, 1.06 mm
• Size 4, 1.15 mm
• Size 6, 1.20 mm
• Size 8, 1.67 mm
• Size 10, 1.75 mm