{"product_id":"mini-drill-chuck-collet-set-0-3-3-4mm-5-shaft-sizes-dc-motor","title":"Mini Drill Chuck Collet Set 0.3–3.4mm | 5 Shaft Sizes","description":"\u003ch2\u003eUniversal Mini Drill Chuck Collet Set – 0.3 to 3.4mm Clamping Range\u003c\/h2\u003e\n\u003cp\u003eUpgrade your rotary tool, DIY grinder, or DC motor project with this precision \u003cstrong\u003emini drill chuck collet and wrench set\u003c\/strong\u003e. Crafted from \u003cstrong\u003ealuminum alloy and brass\u003c\/strong\u003e, this compact yet sturdy fixture clamp accommodates a wide \u003cstrong\u003eclamping range of 0.3 mm to 3.4 mm\u003c\/strong\u003e — making it ideal for hobbyists, woodworkers, electronics makers, and model builders who need reliable bit holding in a small package.\u003c\/p\u003e\n\n\u003cp\u003eFive tail aperture sizes are included to fit the most common DC motor shaft diameters, so you can swap between setups without hunting for adaptors. A handy small wrench is included for quick, secure tightening every time. Made in Mainland China.\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 Holds drill bits and accessories from 0.3 mm up to 3.4 mm\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, and 5.0 mm to suit popular DC motors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable materials:\u003c\/strong\u003e Aluminum alloy body with brass chuck for long-lasting precision\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDC motor compatibility:\u003c\/strong\u003e Designed to fit 180, 385, 555, and 775 motor shaft diameters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes small wrench:\u003c\/strong\u003e For easy, tool-assisted tightening and bit changes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact design:\u003c\/strong\u003e Perfect for tight spaces, intricate work, and miniature drilling tasks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile use:\u003c\/strong\u003e Woodworking, PCB drilling, model making, jewelry crafting, and more\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 – 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), 385 (2.35 mm), 555 (3.17 mm), 775 (5.0 mm)\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\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow to Choose the Right Shaft Size\u003c\/h3\u003e\n\u003cp\u003eIf your motor model is unknown, use a caliper accurate to at least 0.1 mm to measure the shaft diameter precisely, then select the matching tail aperture size from the options above. Choosing the correct fit ensures a secure grip, minimal runout, and accurate results.\u003c\/p\u003e\n\n\u003ch3\u003eGreat Pairing Ideas\u003c\/h3\u003e\n\u003cp\u003eWorking on a detailed DIY project? Check out these related products in our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/18-pc-basswood-carving-blocks-whittling-wood-kit\"\u003e18 Pc Basswood Carving Blocks – Whittling Wood Kit for Carvers\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/garden-pruner-shears-secateurs-bonsai-fruit-trees\"\u003eGarden Pruner Shears – Secateurs for Bonsai \u0026amp; Fruit Trees\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What motor shaft diameters does this mini drill chuck collet set fit?\u003c\/h4\u003e\n\u003cp\u003eA: This set includes five tail aperture options — 2.0 mm, 2.35 mm, 3.0 mm, 3.17 mm, and 5.0 mm — covering the most common DC motor shaft sizes, including 180, 385, 555, and 775 motors. If your motor is not listed, simply measure the shaft diameter with a 0.1 mm-accurate caliper and select the matching aperture.\u003c\/p\u003e\n\u003ch4\u003eQ: What drill bit sizes can this mini chuck collet hold?\u003c\/h4\u003e\n\u003cp\u003eA: The collet clamps any round shank bit or accessory with a diameter between 0.3 mm and 3.4 mm, making it suitable for micro drill bits, engraving bits, grinding tips, and other small rotary accessories commonly used in woodworking, PCB work, and model making.\u003c\/p\u003e\n\u003ch4\u003eQ: Is a wrench included with the mini drill chuck set?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, each package includes one mini drill chuck collet and one small wrench for easy tightening and bit changes, so you have everything needed to get started right away.\u003c\/p\u003e\n\u003ch4\u003eQ: What materials is this mini chuck collet made from?\u003c\/h4\u003e\n\u003cp\u003eA: The chuck body is constructed from durable aluminum alloy, while the chuck itself is made of brass — a combination chosen for its balance of lightweight handling and reliable grip strength during precision work.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What motor shaft diameters does this mini drill chuck collet set fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This set includes five tail aperture options — 2.0 mm, 2.35 mm, 3.0 mm, 3.17 mm, and 5.0 mm — covering the most common DC motor shaft sizes, including 180, 385, 555, and 775 motors. 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