|  | China Ball-End Hex Key Set Manufacturer,Promotional Custom Imprinted Ball-End Hex Key Set,Advertising Ball-End Hex Key Set,discount Ball-End Hex Key Set supplies | 
 
  Features:
1) Material: S2, Cr-V, carbon steel
2) Sizes:
    a) 13pcs: 0.05, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16 
        and 3/8" 
    b) 13pcs: 1.27, 1.5, 2, 2.5, 3, 3.5, 4, 5, 5.5, 6, 7, 8 and 10mm