Clock Winding Key Crank Winder Mainspring Key Nickel-Plated Brass Made Available Sizes 1.75mm I.D. to 6mm I.D. Available Sizes 1.75mm I.D. to 6mm I.D., making it compatible with clocks that require this specific size. It fits securely on the winding post, ensuring smooth and efficient winding with no risk of slipping. Nickel Plated Solid Brass Construction Made of high-quality solid brass with a nickel plating, this key provides enhanced durability, corrosion resistance, and a polished, classic look. The nickel plating ensures the key maintains its shine while resisting tarnish and wear over time. Precision and Reliability The key provides a precise fit, ensuring reliable performance when winding mechanical clocks. The sturdy brass construction combined with the precise inner diameter effective energy storage in the clock's mainspring, keeping the timepiece ticking accurately. Key for Clock Winding Mechanical Clock Crank Winder Key Tool Brass Made (Key ... TAURISH Extra Long Brass Universal Clock Winding Key for Antique Vintage Cloc... 18 Piece Clock Winding Key Set - Original Brass, Odd/Even Number Grandfather Clock Winding Key Crank Winder Mainspring Key Clock Winding Tool ... Clock Winding Key -14 pcs Set for Pocket Watch Winding Keys (00 to 12) TAURISH 2 Pieces 4-in-1 Odd/Even Number Brass Clock Winding Keys Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Buying Options Customer Reviews 4.2 out of 5 stars 27 4.4 out of 5 stars 15 4.0 out of 5 stars 5 3.2 out of 5 stars 3 4.2 out of 5 stars 12 4.6 out of 5 stars 3 Price $9.99$9.99 $9.99$9.99 $25.00$25.00 $9.99$9.99 $13.00$13.00 — no data Tpes Mechanical Clock Extra Long 18 Piece odd/Even Mainspring Key Pocket Watch Winding Keys 4 Prone