18650 & 21700 Battery Solder Joint Grinding Polishing Tool Set

$11.43 USD $13.58 USD

18650 & 21700 Battery Solder Joint Grinding & Polishing Tool Set

Achieve clean, precise solder joint finishing on 18650 and 21700 lithium battery cells with this dedicated grinding and polishing tool set. Designed for DIY battery builders, electronics hobbyists, and workshop enthusiasts, this compact auxiliary grinding kit includes a grinding rod and grinding sleeve to help you smooth and polish battery solder points quickly and accurately — no improvised tools needed.

Key Features

Dual Compatibility: Designed specifically to fit 18650 and 21700 cylindrical battery cells for accurate, snug grinding.
Precision Grinding Action: The included grinding rod and sleeve work together to sand and polish solder joints to a smooth, even finish.
Durable Construction: Made from a combination of plastic and metal for a lightweight yet sturdy build that holds up through repeated use.
Compact & Portable: Measures approximately 8 × 2.3 cm (3.14 × 0.9 in) — small enough to store in your toolkit or workbench drawer.
Easy to Use: Simple auxiliary tool that speeds up your battery prep and finishing workflow.
Color: Green

Specifications

Material: Plastic + Metal
Size: 8 × 2.3 cm / 3.14 × 0.9 in
Color: Green
Compatible Battery Sizes: 18650, 21700
Country of Origin: Made in China

Package Includes

1 × Grinding & Polishing Tool Set (Grinding Rod + Grinding Sleeve)

Please note: Product images are for illustration purposes only and may not reflect the exact size or color. Please refer to the listed specifications for accurate dimensions. Allow ±5–10 mm tolerance due to manual measurement. Slight color variation may occur due to monitor settings.

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Frequently Asked Questions

Q: What battery sizes is this grinding tool set compatible with?

A: This grinding and polishing tool set is specifically designed to work with 18650 and 21700 cylindrical lithium battery cells, ensuring a precise fit for grinding and smoothing solder joints on both popular battery formats.

Q: What is included in the set?

A: The set includes one grinding rod and one grinding sleeve, giving you everything you need to polish and finish battery solder joints in a single compact package.

Q: What material is this tool made from?

A: The tool is constructed from a combination of plastic and metal, balancing lightweight handling with the durability needed for repeated grinding and polishing tasks in DIY electronics and battery assembly projects.