{"product_id":"mini-550-dc-electric-motor-16-8v-18v-21v-angle-grinder-drill","title":"Mini 550 DC Electric Motor 16.8V 18V 21V – Angle Grinder \u0026 Drill","description":"\u003ch2\u003eMini 550 DC Electric Motor – Universal Fit for Angle Grinders, Drills \u0026amp; Screwdrivers\u003c\/h2\u003e\n\u003cp\u003eUpgrade or replace the motor in your cordless power tools with this compact and reliable \u003cstrong\u003eMini 550 DC Electric Motor\u003c\/strong\u003e. Designed for universal compatibility across 16.8V, 18V, and 21V systems, this micro motor is an ideal replacement or upgrade component for angle grinders, drills, and electric screwdrivers. Whether you're a DIY enthusiast or a workshop professional, this motor delivers consistent performance in a conveniently small form factor.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Works seamlessly with 16.8V, 18V, and 21V DC power tools — a true universal fit for most cordless tool platforms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Measures approximately 9.4 × 3.6 cm (3.7 × 1.42 in), making it easy to fit into tight tool housings without modification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Metal Construction:\u003c\/strong\u003e Built from robust metal components for long-lasting performance under demanding workshop conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e550-Series Form Factor:\u003c\/strong\u003e Follows the widely adopted 550 DC motor standard — a trusted size used across countless power tool brands and models.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Suitable for angle grinders, cordless drills, electric screwdrivers, and other micro-motor applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Replacement:\u003c\/strong\u003e Drop-in replacement that simplifies tool repairs and extends the life of your existing power tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 550 DC Electric Motor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e 16.8V \/ 18V \/ 21V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approx. 9.4 × 3.6 cm \/ 3.7 × 1.42 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Universal – angle grinders, drills, screwdrivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This Motor?\u003c\/h3\u003e\n\u003cp\u003eInstead of replacing an entire power tool, swapping out a worn motor is a cost-effective and environmentally smart choice. The Mini 550 DC Electric Motor is engineered to meet the demands of everyday tool use — from grinding and cutting to drilling and fastening. Its universal voltage range means fewer compatibility headaches and more time getting the job done.\u003c\/p\u003e\n\n\u003cp\u003eFor guidance on safe power tool usage and workshop safety best practices, visit the OSHA Power Tools Safety resource.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What power tools is the Mini 550 DC Electric Motor compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This Mini 550 DC Electric Motor is designed for universal compatibility with angle grinders, cordless drills, and electric screwdrivers that operate on 16.8V, 18V, or 21V DC power systems. Its 550-series form factor is widely used across many tool brands, making it a versatile replacement motor.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What are the dimensions of the Mini 550 DC Electric Motor?\u003c\/h4\u003e\n\u003cp\u003eA: The motor measures approximately 9.4 × 3.6 cm (3.7 × 1.42 inches), making it compact enough to fit into most standard cordless tool housings that use the 550-series motor format.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What material is the Mini 550 DC Electric Motor made from?\u003c\/h4\u003e\n\u003cp\u003eA: It is constructed from durable metal components, ensuring it can withstand the mechanical stresses of regular power tool operation and deliver dependable, long-lasting performance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this motor a direct drop-in replacement?\u003c\/h4\u003e\n\u003cp\u003eA: In most cases, yes. The 550 DC motor is a standardized form factor used widely in the power tool industry. However, we recommend confirming the voltage rating and physical dimensions match your specific tool before installation to ensure a proper fit.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What power tools is the Mini 550 DC Electric Motor compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This Mini 550 DC Electric Motor is designed for universal compatibility with angle grinders, cordless drills, and electric screwdrivers that operate on 16.8V, 18V, or 21V DC power systems. 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