{"product_id":"mini-electric-grinder-13000rpm-stepless-speed-220v","title":"Mini Electric Grinder 13000RPM Stepless Speed 220V Rotary Tool","description":"\n\u003ch2\u003eMini Electric Grinder – Precision Engraving, Polishing \u0026amp; Drilling in One Compact Tool\u003c\/h2\u003e\n\u003cp\u003eMeet your new go-to rotary tool: a handheld mini electric grinder engineered for hobbyists, craftspeople, and DIY enthusiasts alike. Delivering up to \u003cstrong\u003e13,000 RPM\u003c\/strong\u003e with stepless (infinitely variable) speed control, this compact powerhouse handles cutting, engraving, milling, grinding, polishing, and drilling with ease — all in a lightweight, ergonomic body that fits comfortably in your hand.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStepless Speed Control:\u003c\/strong\u003e Dial in exactly the speed you need — from gentle polishing to aggressive cutting — with the included infinitely variable speed power supply (3–12V output, 220V mains input).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUp to 13,000 RPM:\u003c\/strong\u003e Powerful 385-type motor delivers consistent torque across a wide speed range for clean, precise results every time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Multi-Function Use:\u003c\/strong\u003e Ideal for cutting, engraving, milling, grinding, polishing, surface removal, and drilling across a huge variety of materials.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Material Compatibility:\u003c\/strong\u003e Works on jade, agate, stone, wood, aluminum plate, thin copper plate, plastic, particle board, circuit boards, and epoxy boards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e At just 12 × 3 × 3 cm and feather-light, this grinder slips into a toolkit, drawer, or bag with ease — ready wherever your project takes you.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComfortable Grip:\u003c\/strong\u003e Ergonomically designed handle gives you better control during detailed engraving and fine finishing work.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Chuck Range:\u003c\/strong\u003e Accepts bits and accessories from 0.3 mm to 4 mm in diameter — compatible with most standard rotary tool accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e385 Type Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e220V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6–24W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStepless \/ Infinitely Variable (3–12V regulated output)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Grinding Wheel Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChuck Clamping Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.3 – 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBody Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 × 3 × 3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot Required (AC Powered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Handheld Mini Electric Grinder\u003c\/li\u003e\n  \u003cli\u003e1 × Infinitely Variable Speed Power Supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThis tool operates on \u003cstrong\u003e220V AC\u003c\/strong\u003e. Please ensure compatibility with your local mains voltage before use.\u003c\/li\u003e\n  \u003cli\u003eDue to manual measurement, please allow a 1–3 cm dimensional tolerance.\u003c\/li\u003e\n  \u003cli\u003eActual color may vary slightly from product images due to screen and lighting differences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety \u0026amp; Tool Use Resources\u003c\/h3\u003e\n\u003cp\u003eFor safe use of rotary and power tools in your workspace, refer to the U.S. Occupational Safety and Health Administration's guidance: OSHA – Power and Hand Tools Safety.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage does this mini electric grinder require?\u003c\/h4\u003e\n\u003cp\u003eA: This handheld mini electric grinder is designed for \u003cstrong\u003e220V AC\u003c\/strong\u003e mains power. If your region uses 110V, you will need a step-up voltage converter to use this tool safely. Always verify your local voltage before plugging in.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What types of materials can this electric grinder work on?\u003c\/h4\u003e\n\u003cp\u003eA: This versatile rotary grinder is suitable for a wide range of materials including jade, agate, stone, wood, aluminum plate, thin copper plate, plastic, particle board, circuit boards, and epoxy boards — making it perfect for crafting, model-making, electronics work, and detailed engraving projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the stepless speed control work?\u003c\/h4\u003e\n\u003cp\u003eA: The included variable speed power supply lets you adjust the output voltage from 3V to 12V, which in turn controls the motor speed from very low RPM up to a maximum of 13,000 RPM. This gives you smooth, continuous (stepless) speed adjustment — no fixed speed steps — so you can fine-tune performance for each material and task.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What size bits and accessories are compatible with this grinder?\u003c\/h4\u003e\n\u003cp\u003eA: The chuck accepts shanks ranging from \u003cstrong\u003e0.3 mm to 4 mm\u003c\/strong\u003e in diameter, making it compatible with the vast majority of standard rotary tool bits, grinding wheels (up to 30 mm diameter), engraving bits, polishing tips, and drill bits available on the market.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage does this mini electric grinder require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This handheld mini electric grinder is designed for 220V AC mains power. 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