Mini Multifunction Grinder | 10,000 RPM Mini Electric Polisher | The Ultimate Tool for Repairing Tweezers, Soldering Iron Tips, and Knife Blades | With LCD Display

Say goodbye to tedious manual grinding! The HMT-D71 Mini Grinder is specifically designed for precision electronics repair, model making, and tool restoration. With powerful 10,000 RPM performance, 5–9V wide-voltage operation, a color LCD for real-time monitoring, and 4-speed forward/reverse settings, it effortlessly restores oxidized soldering iron tips, dull tweezers, and knife blades in just 10 seconds. Compact and portable, it’s an essential “refurbishment tool” for any workbench.

🔥 One machine, multiple uses—covers every scenario
Still struggling with dull tweezers or soldering tips that won’t take solder? The HMT-D71 Micro Grinder is your ultimate solution.

Electronics Repair: Easily restore oxidized soldering tips in 10 seconds to make them solder-ready again; polish multimeter probes for more accurate measurements.

Precision Work: Restore the tips of tweezers, small scissors, and blades to make your tools look brand new.

Modeling and Jewelry: Ideal for polishing and grinding small metal and hard objects.

💪 Powerful Engine, Performance Beast
Maximum RPM: ≤10,000 rpm (no-load), delivering explosive power.

Speed Control Range: 4-speed precise adjustment with one-touch forward/reverse switching.

Display System: Color LCD digital display for real-time monitoring of operating voltage and current—keep everything under control.

📏 Product Specifications
Model Number: HMT-D71
Operating Voltage: DC 5–9 V
Maximum RPM: ≤10,000 rpm (no-load)
Speed Control Range: 4-speed precise adjustment
Rotation Direction: Switchable between forward and reverse
Display System: LCD digital display
Monitored Parameters: Real-time operating voltage, real-time operating current
Applications: Tweezers, test probes, razor blades, small scissors, jewelry, models, and other small metal or hard objects
Product Dimensions: 55 mm x 55 mm x 36 mm (grinding disc diameter: 49 mm)
Product Weight: 132.8 g
Accessories Included: Mini grinder x 1, matching sanding sheets x 2 (one 240-grit and one 2000-grit)

🎁 Great Value Gifts and Package Options
Basic Edition: Standard unit + 2 sheets of sandpaper (one each of 240-grit and 2000-grit).
Deluxe Consumables Pack (Optional): 10 sheets of 240-grit sandpaper + 10 sheets of 2000-grit sandpaper, plus a free transparent storage case to meet long-term usage needs.

❓ Frequently Asked Questions (FAQ) 
Q1: What types of tools is this sander suitable for?
A: It is suitable for small metal and hard objects, such as tweezers, blades, soldering iron tips, multimeter probes, jewelry, models, etc.

Q2: Will grinding the soldering iron tip affect its lifespan?
A: This tool is specifically designed for restoration. When used with the included 240-grit (for coarse grinding to remove oxidation) and 2000-grit (for fine grinding and polishing) sandpaper, it only removes the blackened layer without damaging the soldering iron body. When used correctly, it can effectively extend the life of the soldering iron tip.

Q3: How is it powered?
A: It operates on a wide-range DC 5–9V power supply. You can power it using a standard USB charger, a power bank, or a computer’s USB port, making it very convenient.

Q4: What does the screen display?
A: The LCD screen displays the current operating voltage (e.g., 9.41V) and operating current (e.g., 0.00A) in real time, as well as the current setting and whether the motor is rotating clockwise or counterclockwise.