Brass Blessing : Clock Winding Key - Brass (Even and Odd) Antique and Grandfather Key (Even & Odd) (5025)

Set of 2 clock keys for winding clocks || Made of brass (A metallic alloy that is a good source of copper and zinc) || Universal application 5 PRONG ODD SIZES : 3, 5, 7, 9, 11 || 3 mm 1/8 in (3); 3.5 mm 9/64 in (5); 4 mm 5/32 in (7); 4.5 mm (9) and 5 mm 13/64 in (11).

5 PRONG EVEN SIZES : 2, 4, 6, 8, 10 || 2.75 mm 7/64 in (2); 3.25 mm 1/8 in (4); 3.75 mm 5/16 in (6); 4.25 mm 11/64 in (8); 4.75 mm 3/16 in (10).

MASTER KEY : This master key has universal application.