18650 & 21700 Battery Spot Weld Grinder Tool Rotary Grinding Sleeve with Bearings for Solder Spot Removal

Product Description

1. Easily grind down uneven spot welding marks and residual nickel strips on 18650 or 21700 battery terminals. Perfect for lithium battery recycling, cell rebuilding, and DIY battery pack projects to restore smooth, clean contact surfaces. 2. Equipped with an integrated high-speed metal ball bearing inside each guiding sleeve. This structural design ensures ultra-smooth rotation of the grinding head, preventing wobble, reducing friction heat, and protecting the battery body. 3. This product is strictly compatible ONLY with electric hand drills (lithium battery drills). Do NOT use with high-speed die grinders, rotary tools, or engraving machines. Excessively high RPM on other devices will melt the guide sleeve and damage the grinding head. 4. Specifically designed to grind down residual spot-welded nickel strip joints from battery disassembly. Do NOT use this tool on soft tin or lead solder joints; forced grinding will cause the melted solder to fill and clog the stones pores, making the head smooth and unusable. 5. When using the pink corundum grinding head for the first time, its surface may not make full flat contact with the battery. For optimal performance, install the grinding stone onto your hand drill first, run it briefly against a concrete floor or rough surface to flatten the tip, then use on batteries.

Specifications

SKU

TBD0606965203

Category

Home & Garden › Tools & Industrial & Scientific › Abrasive Tools & Accessories

Weight

0.074 kg

Delivery

Standard delivery