Felo 0715732358 5/16-Inch x 6-Inch Slotted Screwdriver with Hex Bolster, 550 Series
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.  Handle features metal cap with full length, impact-proof handle core.  Hex bolster offers ability to use wrench for more torque.