Features Portable and Versatile: Compact screwdriver head magnetizer for convenient home use, offering portability and versatility for a variety of screwdriver tools. Quick Magnetization: Enables quick magnetization and demagnetization, delivering durable magnetic force to enhance screw handling without easy demagnetization. Efficient Screw Handling: Magnetized screwdriver provides efficient and convenient screw handling, enhancing precision and ease of use. Durable Construction: Made of impact-resistant ABS material, ensuring durability and longevity for continuous usage. Wide Applicability: Suitable for a range of equipment maintenance needs, offering wide applicability for various screwdriver tools. Specification: Item Type: Torsion Screwdriver Material: Chrome vanadium alloy steel Purpose: Industrial use, adjustable manual torsion screwdriver Range: 0.5~3 N.M Graduation Value: 0.05 N.M Accuracy: ±6% Connector Size: 6.35 Hex Knob Outer Diameter: Approx. 39mm / 1.5in How To Use: Pull down the lock ring and turn the handle to adjust the torsion value. After adjusting the torsion value, push it up to use. When the torsion screwdriver reaches the torsion value, it will make a clicking sound and automatically slip to indicate that the torsion value is reached. Stop applying force. Package List: Item Type: Torsion Screwdriver Material: Chrome vanadium alloy steel Purpose: Industrial use, adjustable manual torsion screwdriver Range: 0.5~3 N.M Graduation Value: 0.05 N.M Accuracy: ±6% Connector Size: 6.35 Hex Knob Outer Diameter: Approx. 39mm / 1.5in How To Use: Pull down the lock ring and turn the handle to adjust the torsion value. After adjusting the torsion value, push it up to use. When the torsion screwdriver reaches the torsion value, it will make a clicking sound and automatically slip to indicate that the torsion value is reached. Stop applying force. Package List 1 x Packing Box 1 x Torsion Machine 4 x Short Screwdriver Bit 1 x Desiccant