The DongCheng HD090621 Magnetizer and Demagnetizer is a compact, dual-function workshop accessory designed to instantly magnetize or demagnetize screwdriver tips, hex keys, tweezers, and small hand tools. Measuring 49 x 29 x 51mm, this portable unit operates without batteries or electrical supply, using high-density permanent ceramic magnets to control magnetic charge in seconds.

Sliding a screwdriver shaft through the positive (+) channel instantly magnetizes the tip, allowing it to hold steel screws firmly in place for one-handed driving in tight recesses. Sliding it through the negative (-) demagnetizer step completely removes the magnetic charge, preventing the tool from attracting metal filings and protecting sensitive electronic components (PCBs, hard drives, sensors) from magnetic interference. Packaged in a double blister pack for protection.

Key Features

• Dual-Function Magnetize & Demagnetize: Instantly adds or removes magnetic charge from screwdriver blades and precision metal tools.
• Fast & Effortless Operation: A quick single pass through the marked slots achieves instant magnetization or neutral demagnetization.
• No Batteries or Electricity Required: Utilizes durable permanent magnetic fields for maintenance-free lifetime performance.
• Electronics & Sensor Safe: Allows quick demagnetizing to safely work inside computers, circuit boards, and sensitive electronics.
• Compact 49x29x51mm Footprint: Fits easily into any tool pouch, pocket, or toolbox compartment.
• Double Blister Pack: Durable packaging keeps the unit protected during shipping and display.

Applications

• Magnetizing screwdrivers to hold small fasteners when working in recessed engine bays and electrical panels
• Demagnetizing tweezers and drivers before working on computer motherboards, hard drives, and delicate electronics
• Magnetizing Allen/hex keys and Torx drivers for mechanical maintenance
• General utility for electricians, electronics repair technicians, and DIY mechanics

Technical Specifications

Size/Model-wise Table