The Spiral Flute Screw Extractors are made from rugged, alloy steel to handle the stress of removing broken bolts, studs, socket screws and fittings. They are tapered, left hand spiral flutes that grip screws firmly. DRILL BIT - SCREW EXTRACTOR#8 Spiral Flute (with 13/16 bit) remove 1 1/8-1 3/8 Quantity in Basket: None Code: SFSE1316 Price: $19.20 Quantity: