Ivy Classic 5-piece spiral screw extractor set includes: No. 1: 5/32" (4mm)
No. 2: 3/16" (5mm)
No. 3: 1/4" (6mm)
No. 4: 5/16" (8mm)
No. 5: 3/8" (10mm)
Spiral screw extractors are used to remove broken screws, bolts, or studs. They are made of chrome alloy steel, which provides durability and strength. This set is designed for both professional and DIY use.