•High-Carbon Steel Construction: This 8-piece screw extractor set is crafted from durable high-carbon steel, ensuring high strength and long-lasting performance. Ideal for removing damaged or stripped screws and bolts with ease •Precision Engineering: Each extractor features a well-defined thread design and is heat-treated for enhanced hardness, allowing it to grip tightly onto broken screws, bolts, or pipes without slipping •Versatile Application: Perfect for removing broken water pipes, damaged screws, triangle valve bolts, and more. An essential tool for plumbing, automotive repairs, and general maintenance tasks Specifications: •Product material: high carbon steel •Product size: •No. 1: total length 53mm, head diameter 2.7mm, handle diameter 3mm, thread length 16mm, applicable range 4-6mm •No. 2: total length 58mm, head diameter 3mm, handle diameter 3.6mm, thread length 20mm, applicable range 6-8mm •No. 3: total length 65mm, head diameter 4mm, handle diameter 5.2mm, thread length 24mm, applicable range 8-11mm •No. 4: total length 76mm, head diameter 5mm, handle diameter 6.3mm, thread length 30mm, applicable range 11-14mm •No. 5: total length 80mm, Head diameter 8mm, handle diameter 8.5mm, thread length 33mm, applicable range 14-18mm •No. 6: total length 90mm, head diameter 10mm, handle diameter 12mm, thread length 39mm, applicable range 18-25mm •No. 7: total length 97mm, head diameter 11mm, handle diameter 15mm, thread length 47mm: applicable range is 1/2" pipe •No. 8: total length 105mm, head diameter 14mm, handle diameter 19mm, thread length 50mm, applicable range is 3/4" pipe •Product process: high temperature quenching •Product use: suitable for broken pipes, broken screws, broken screws of triangular valves, etc. Compatible with: •Universal Package included: •8 x Screw Extractors •1 x Storage Box