{"product_id":"accupro-cy01010000msc-drill-chuck-3-8-inch-threaded-1-2-20","title":"Accupro CY01010000MSC Drill Chuck 3\/8 Inch Threaded 1\/2-20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO CY01010000MSC is a keyed drill chuck designed for use with threaded-mount drilling equipment. It accepts bit shanks from 1\/32 inch up to 3\/8 inch (0.3750 inch decimal), making it suitable for a wide range of twist drills and step bits used in trade and light industrial work. The chuck mounts via a 1\/2-20 threaded interface and uses a K34 key for tightening and releasing the jaws. The sleeve diameter measures 37 millimeters, and the chuck body is constructed from steel for durability under repeated use. Installation requires no adapters when paired with a compatible 1\/2-20 threaded spindle.\u003c\/p\u003e\n\u003cp\u003eThis drill chuck fits benchtop drill presses, floor-standing drill presses, and portable drilling equipment equipped with a 1\/2-20 threaded spindle. It is well suited for metal fabrication shops, electrical contractors drilling panel knockouts, plumbers boring holes through framing, and HVAC technicians drilling sheet metal or structural members. The keyed design provides a secure bit grip during high-torque operations, reducing bit slip compared to keyless alternatives. It is intended for professional trade use where consistent clamping force and repeatable bit changes are required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCapacity range from 1\/32 inch to 3\/8 inch accommodates a broad selection of twist drills and step bits\u003c\/li\u003e\n  \u003cli\u003e1\/2-20 threaded mount for direct installation on compatible spindles without adapters\u003c\/li\u003e\n  \u003cli\u003eKeyed operation using K34 key for positive jaw engagement and reduced bit slip\u003c\/li\u003e\n  \u003cli\u003eSteel chuck body for resistance to wear and deformation under load\u003c\/li\u003e\n  \u003cli\u003e37-millimeter sleeve diameter with plain bearing design\u003c\/li\u003e\n  \u003cli\u003eClosed length of 60 millimeters and open length of 51 millimeters for compact profile\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit chuck for drill presses and drilling equipment with a 1\/2-20 threaded spindle mount.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified technician with the drill press or drilling tool fully de-energized and unplugged before work begins. Thread the chuck onto the 1\/2-20 spindle by hand until snug, then secure according to the equipment manufacturer's procedure. Use the K34 key to verify jaw movement through the full capacity range before returning the tool to service. Inspect the chuck and key for wear or damage at regular service intervals.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Chuck Capacity\u003c\/strong\u003e: 1\/32 inch (0.0394 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Chuck Capacity\u003c\/strong\u003e: 3\/8 inch (0.3750 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Size\u003c\/strong\u003e: 1\/2-20 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey Type\u003c\/strong\u003e: Keyed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey Number\u003c\/strong\u003e: K34\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing Type\u003c\/strong\u003e: Plain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChuck Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSleeve Diameter\u003c\/strong\u003e: 37 millimeters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClosed Length\u003c\/strong\u003e: 60 millimeters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpen Length\u003c\/strong\u003e: 51 millimeters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.51 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: CY01010000MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51739551007026,"sku":"CY01010000MSC","price":127.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/28f86d1593585610ab4ab3c935f56725.jpg?v=1788816123","url":"https:\/\/voomisupply.com\/products\/accupro-cy01010000msc-drill-chuck-3-8-inch-threaded-1-2-20","provider":"Voomi Supply","version":"1.0","type":"link"}