This 3" 9 Piece Insulated Nut Drivers Set is made of impact-resistant and flame-retardant insulating material. The two-color insulation makes it easier for inspection and overall safety. If the yellow under layer is showing, the tool may no longer be insulated properly and should be replaced and/or removed from service. Rated for exposure up to 1000V AC and dielectrically tested at 10,000V. Complies with IEC 900, ASTM 1505-01 and NFPA 70E. Nut Drivers measure 3/16", 1/4'', 5/16'', 11/32'', 3/8'', 7/16'', 1/2'', 9/16'' and 5/8.''

Features:

• Made of impact-resistant and flame-retardant insulating material
• Two-color insulation
• Rated for exposure up to 1000V AC
• Dielectrically tested at 10,000V
• Nut Drivers measure 3/16", 1/4'', 5/16'', 11/32'', 3/8'', 7/16'', 1/2'', 9/16'' and 5/8''