3/16 in. x 3-1/2 in. Slotted Screwdriver - 2 Component Handle. Felo 2-component Screwdriver handles are ergonomically designed for fatigue-free operation. This handle features full surface coated soft-component for highest torque transmission. Blades made of chrome-molybdenum-vanadium steel, reaching hardness up to 61 Rockwell. The handle is smooth and seamless for maximum comfort, and has a hanging hole for easy storage or inserting lever. Size:3/16 in. x 3-1/2 in. Slotted Screwdriver.