Review on ⏰ JT6336-2 Brass Clock Key Set - SE Universal 4 Prong for Winding Clocks, Odd and Even Numbers (2 PC.) by Eric Stewart

A good set of winding keys for small watches with a small mainspring. They are NOT intended for use in large wall clocks (e.g. 31 day clocks) or grandfather clocks as stated in the description. They make a great set to keep in a box if you're an indoor watchmaker like me, or if you're a collector or hobbyist tinkering with watch finds. If you have a large wall or grandfather clock, you will need a wrench with a longer shaft and wings for extra torque. For grandfather clocks you usually need a crank. Also be careful with these keys. The legs are arranged at an angle of 72 degrees to each other. If your winding/setting stem is too far from the dial it will either not reach OR if it reaches and you set it fully two adjacent rods can and will circle the stem hole on the dial.