IBX1619 Features: * Made from rugged, high carbon steel to handle the stress of removing bolts * Extractor size and recommended drill bit size are etched on each tool for easy identification * Ideal for soft materials or thin-walled pieces such as pipe and fittings * Will not expand soft material being removed resulting in easier removal * After drilling hole with either right or left-handed drill bit, (left is recommended) insert extractor, turn counter clockwise * Grips into sides of drill hole and removes broken part without damaging the threaded holeSpecs: * Recommended tap wrench: TR-98 * Use drill size: 5/16"" * Removes bolts and screws: 1/2 - 9/16"" and 1/4"" NPT, 12mm - 14mm, 1/4"" BSP * Carded Specifications: * Straight Flute ST-4 Screw Extractor 5/16"" TR-98 Carded Warranty: * Lifetime warranty does not cover abuse