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8 Pcs. High-Carbon Steel Screw & Bolt Extractor Set - Precision Thread Broken-Fastener Remover
Free seized screws, snapped bolts or broken water pipes without drilling them out. This eight-piece extractor kit is machined from heat-treated high-carbon steel for maximum torsional strength and bite. Each left-hand thread digs deeper as you turn, gripping securely so the damaged fastener backs out cleanly—ideal for plumbing, automotive repair and household maintenance.
Key Features & Specifications
- High-carbon steel construction - quenched for hardness and long service life
- Eight extractor sizes - cover 4 mm screws up to 3 ⁄ 4-inch pipe fittings
- Precision left-hand threads - bite into stripped or rusted fasteners without slipping
- Easy identification - size numbers 1-8 correspond to the ranges below:
- No 1: Ø 2.7 mm head, 53 mm length | removes 4-6 mm screws
- No 2: Ø 3 mm head, 58 mm length | 6-8 mm screws
- No 3: Ø 4 mm head, 65 mm length | 8-11 mm screws
- No 4: Ø 5 mm head, 76 mm length | 11-14 mm screws
- No 5: Ø 8 mm head, 80 mm length | 14-18 mm screws
- No 6: Ø 10 mm head, 90 mm length | 18-25 mm screws
- No 7: Ø 11 mm head, 97 mm length | ½-inch pipe
- No 8: Ø 14 mm head, 105 mm length | ¾-inch pipe
- Versatile use - removes damaged screws, triangle-valve bolts, snapped studs and rusted plumbing nipples
- Compact kit - slip into any toolbox for quick problem-solving on site
Ideal Examples of Usage
- Twist out a sheared exhaust-manifold bolt without removing the cylinder head
- Extract a rusted shower-valve screw when refurbishing bathroom fittings
- Remove a snapped M8 machine screw from a lawn-mower deck
- Unscrew corroded radiator-bleed nipples during heating maintenance
- Back out a broken brass water-pipe stub to install a new tap connector
Why This Set Is the Perfect Buy
- Eight sizes handle most household and workshop fasteners—no second trip to the shop
- High-temperature quenching gives extra hardness for repeated professional use
- Reverse threads bite harder as you turn anticlockwise, reducing drill-bit wandering
- One small investment saves hours of grinding, drilling or replacing whole parts
- Compatible with standard spanners or adjustable wrenches—no special handles needed
Interesting Facts About Screw Extractors
- Left-hand spiral extractors date back to the late 1800 s and still follow the same basic geometry today
- Heat-treated high-carbon steel can reach up to 60 HRC on the Rockwell scale, harder than most bolts it removes
- Properly sized extractors preserve the original thread in the workpiece, avoiding costly re-tapping
- Using penetrating oil first can reduce removal torque by up to 25 %, prolonging tool life
- A complete extractor kit is a staple in automotive roadside-assistance vans across Europe
Packing: Bulk
EAN: 5714122562852
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