{"product_id":"mini-drill-chuck-collet-set-0-3-3-4mm-dc-motor-electric-grinder","title":"Mini Drill Chuck Collet Set 0.3–3.4mm | DC Motor Tool Fixture","description":"\u003ch2\u003eUniversal Mini Drill Chuck Collet Set — Precise, Versatile \u0026amp; Compact\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY workshop or electronics bench with this \u003cstrong\u003eMulti-functional Mini Drill Chuck Collet Set\u003c\/strong\u003e. Designed to fit a wide range of DC motors and electric grinding tools, this aluminum alloy and brass chuck delivers a secure, wobble-free grip on drill bits and accessories from \u003cstrong\u003e0.3 mm to 3.4 mm\u003c\/strong\u003e in diameter — all in one compact kit that includes a small tightening wrench.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Clamping Range:\u003c\/strong\u003e Accepts bits and shafts from 0.3 mm to 3.4 mm for maximum versatility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5 Tail Aperture Sizes:\u003c\/strong\u003e 2.0 mm \/ 2.35 mm \/ 3.0 mm \/ 3.17 mm \/ 5.0 mm — compatible with most common DC motor shaft diameters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Materials:\u003c\/strong\u003e Aluminum alloy body + brass collet for durability, lightweight handling, and reliable grip\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes Mini Wrench:\u003c\/strong\u003e The bundled small wrench makes tightening and releasing bits quick and tool-free hassle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Motor Compatibility:\u003c\/strong\u003e Works with 180, 385, 555, and 775 DC motors right out of the box\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY \u0026amp; Craft Friendly:\u003c\/strong\u003e Ideal for woodworking, PCB drilling, model making, engraving, and electronics projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy + Brass\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.3 mm – 3.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTail Aperture Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.0 mm \/ 2.35 mm \/ 3.0 mm \/ 3.17 mm \/ 5.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Motors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180 (2.0 mm shaft) \/ 385 (2.35 mm shaft) \/ 555 (3.17 mm shaft) \/ 775 (5.0 mm shaft)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × Mini Chuck Collet + 1 × Small Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMotor Selection Guide\u003c\/h3\u003e\n\u003cp\u003eNot sure which size to choose? Match your DC motor model to the correct shaft diameter:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e180 Motor\u003c\/strong\u003e → 2.0 mm shaft aperture\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e385 Motor\u003c\/strong\u003e → 2.35 mm shaft aperture\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e555 Motor\u003c\/strong\u003e → 3.17 mm shaft aperture\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e775 Motor\u003c\/strong\u003e → 5.0 mm shaft aperture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eTip: If your motor model is unknown, use a caliper accurate to 0.1 mm to measure the exact shaft diameter before selecting your chuck size.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Tools You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003eSilicone Grease Lubricant for O-Rings \u0026amp; Moving Parts\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-multi-use-faucet-bubbler-wrenches-6-sizes-sink-wrenches-detach-tool-for-kitchen-bathroom-faucet-parts-repair-spanner\"\u003eMulti-Use 6-Size Wrench Spanner Tool Set\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3pcs-silicone-sealant-scraper-set-multi-functional-caulking-nozzle-tools-for-tile-floor-joints-grout-finishing-and-renovation\"\u003eMulti-Functional Scraper \u0026amp; Caulking Tool Set\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is this mini drill chuck collet set used for?\u003c\/h4\u003e\n\u003cp\u003eA: This mini drill chuck collet is used to securely attach small drill bits, engraving bits, or grinding accessories (0.3–3.4 mm) to DC motors and electric rotary tools. It is popular for woodworking, PCB drilling, model building, engraving, and other precision DIY tasks.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I know which tail aperture size to select for my motor?\u003c\/h4\u003e\n\u003cp\u003eA: Match your DC motor model to its standard shaft diameter: 180 motor = 2.0 mm, 385 motor = 2.35 mm, 555 motor = 3.17 mm, 775 motor = 5.0 mm. If your motor model is unlisted or unknown, measure the shaft diameter with a 0.1 mm-accurate caliper and choose the matching aperture size.\u003c\/p\u003e\n\u003ch4\u003eQ: What materials are the chuck and collet made from?\u003c\/h4\u003e\n\u003cp\u003eA: The chuck body is constructed from lightweight aluminum alloy, while the collet is made from brass — a combination that provides durability, corrosion resistance, and a secure, precise grip on drill bits and tool shanks.\u003c\/p\u003e\n\u003ch4\u003eQ: Does the set include a wrench for tightening the chuck?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Each set comes with one mini chuck collet and one small tightening wrench, so you can quickly and securely fasten or release bits without needing additional tools.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is this mini drill chuck collet set used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This mini drill chuck collet is used to securely attach small drill bits, engraving bits, or grinding accessories (0.3–3.4 mm) to DC motors and electric rotary tools. 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