WHOLESALE: 20PC HEX KEY WRENCH SET SAE & METRIC. IIT. Illinois Industrial Tool hex key wrench set SAE & Metric. 10pc SAE size: 1/16'', 5/64'', 3/32'', 1/8'', 9/64'', 5/32'', 3/16'', 7/32'', 1/4'', 5/16''. 10pc metric size: 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 5.5mm, 6mm, 8mm. Black oxide finish for durability and rust resistance.Illinois Industrial Tools