The Klein 602 4 INS Insulated Cabinet Tip Screwdriver has a 4 Inch heavy duty round shank and two layers of insulation to provide protection against electric shock. Other features include: Precision ground tips to fit screw openings securely and resist slippage. Cushion Grip handles for greater torque and comfort. Patented Tip Ident quickly identifies the type of screwdriver and tip orientation. Custom US made tool steel and made in the USA. Individually tested to exceed standards. Klein insulated tools exceed IEC 60900 and ASTM F1505 standards for insulated tools, and are clearly marked with the official 1000 Volt rating symbol. Overall Length: 8 11/32 Inch. Shank Length: 4 Inch. Shank Tip Width: 1/4 Inch. Weight: 0.30 Pound.