Spiral extractor & drill bit - 537 series - combo packs - designed to remove broken studs, bolts, socket screws and fittings. Aggressive left hand spiral design for extra gripping power. Spiral flutes are designed to embed themselves deeper into the metal as you turn the tool, so as the fastener resistance increases, the extractor's grip increases. Extractor size and recommended drill bit size are etched on each tool. High speed steel drill bit ensures fast, clean drilling.
53704 Features: -Screw extractor and drill bit. -Extractor is packaged with the correct size drill bit. -Aggressive left hand spiral design provides extra gripping power. -High speed steel drill bit ensures fast, clean drilling. Size: -1/4". Unit Material: -Steel. Product Type: -Screwdriver Bits. Use: -Drill Bits/Extractors. Generic Dimensions: -Use 1/4'' drill size, use TR-88 tap wrench, 9/32'' to 3/8'', 1/8'' NPT, 1/8'' BSP, 8 mm to 10 mm hex head size. Dimensions: Overall Product Weight: -0.12 Pounds.
Brand: Irwin Industrial, Model: 53704