3/8-Inch Keystone Tip Screwdriver Square – Heavy-Duty Shank Screwdriver Klein Tools' 3/8-Inch (9.5 mm) Keystone Tip Screwdriver with an 8-Inch (203.2 mm) square shank is engineered for demanding electrical and industrial applications. Designed for professionals requiring reliable torque and comfort, this screwdriver is suitable for use by electrical distributors, lighting solutions providers, wire and cable specialists, and switchgear suppliers. It features a Cushion-Grip™ handle that enhances grip and torque, while the Tip-Ident® system allows quick identification of the screwdriver type and tip orientation. Specifications Tip Type: Keystone Tip Size: 3/8" (9.5 mm) Shank Type: Square Shank Length: 8" (20.3 cm) Material: Steel Insulated: No Handle Material: Heavy-Duty Rubber Handle Color: Black Overall Length: 13.438" (34.1 cm) Weight: 0.64 lb (10.4 oz / 295 g) Features Cushion-Grip™ handle for greater torque and comfort Tip-Ident® system for quick tip type and orientation identification Chrome-plated square shank resistant to corrosion Precision-machined tip for exact fit Integral flanges provide twist-resistant blade anchor Meets or exceeds applicable ASME / ANSI specifications Downloads & Links Spec Sheet