5/64" x 4" Series 99® Ballpoint Allen® Hex Socket Screw Blade 9922BP Product Features: Series 99® interchangeable ballpoint Allen® hex socket screw blade Inch size Allen® is a registered trademark of Holo Krane, Technology Corp Description Hex Socket Blade Style Ballpoint Allen® Blade/Point Size Blade Diameter Working Length Overall Length 5/64 in./1.98 mm 5/64 in./1.98 mm 4 in./102 mm 4 in./102 mm