Screw Extractor

What Are Screw Extractors and Why Do You Need Them?

Even the most careful mechanic eventually runs into a fastener that won't budge — a stripped screw head, a snapped bolt flush with the surface, or a corroded stud that crumbles under torque. Screw extractors are purpose-built tools designed to grip and remove these damaged or broken fasteners without destroying the surrounding material. Whether you're working on an engine block, a brake caliper, or household hardware, having the right extractor in your toolbox can save hours of frustration and prevent an expensive trip to the machine shop.

How Screw Extractors Work

Most screw extractors use one of two core designs. Spiral flute extractors feature a left-hand helical cutting surface that bites deeper into the fastener as you turn counterclockwise — the same direction needed to back the fastener out. Straight flute (hex-end) extractors are hammered into a pre-drilled pilot hole and then turned with a wrench or tap handle; these are particularly effective on harder or more severely damaged fasteners. In both cases, the process starts with a correctly sized pilot hole drilled into the center of the broken fastener, so a quality drill bit set is an essential companion to any extractor kit.

Key Considerations When Buying Screw Extractors

• Material hardness: Look for extractors made from high-carbon or alloy steel — they need to be harder than the fasteners they're removing.
• Set variety: A good set covers a range of sizes to handle everything from small machine screws to large-diameter bolts.
• Pilot drill included: Many kits bundle left-hand drill bits with extractors, which is a major convenience advantage.
• Drive compatibility: Check whether the extractor works with a standard tap wrench, T-handle, or power drill, depending on your preferred workflow.
• Flute design: Match the extractor style (spiral vs. straight flute) to the material and degree of damage you're dealing with.

Top Screw Extractor Brands

Irwin Hanson is by far the most popular choice in this category, and for good reason. Their Hanson-brand spiral extractor sets are engineered from high-carbon steel and are widely trusted by professional mechanics and serious DIYers alike. Many of their kits include left-hand drill bits, making them a one-stop solution for broken fastener removal.

Walton Tools has a long-standing reputation for precision-made straight flute extractors. Their tools are especially well-regarded for use in tap and die work, offering exceptional grip on hardened or deeply embedded fasteners that spiral designs may struggle with.

Mayhew brings decades of American tool-making heritage to their screw extractor lineup. Mayhew extractors are known for their durability and are a solid choice for heavy-duty shop environments where tools take a beating.

OTC Tools is a trusted name in professional-grade hand and specialty tools. Their screw extractor offerings are designed with the professional technician in mind, emphasizing reliability and ease of use in tight workspace conditions.

Lisle rounds out the top brands with specialty extractor tools that target specific fastener removal challenges. Lisle is known for innovative, niche-focused tools that solve problems other brands overlook, making them a great addition to any comprehensive tool collection.

Get the Job Done Right the First Time

A broken fastener doesn't have to mean a broken project. With the right screw extractor, you can tackle stripped screws and snapped bolts confidently. Browse the full selection of 126+ screw extractors across all major brands to find the exact size and style you need.