{"product_id":"accupro-cks1007020msc-keyless-drill-chuck-3-8-in-jt33","title":"Accupro CKS1007020MSC Keyless Drill Chuck 3\/8 in JT33","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO CKS1007020MSC is a keyless drill chuck designed for use with tapered-mount drill presses, portable drills, and similar rotary tool spindles. It accepts drill bit shanks from 1\/32 inch up to 3\/8 inch, making it suitable for a wide range of twist drills, step bits, and small-shank tooling. The JT33 tapered mount provides a secure spindle fit without the need for threaded adapters. Internal ball bearing construction supports smooth, consistent jaw actuation and helps maintain concentricity under repeated use. The sleeve diameter measures 40 millimeters. At 1.23 pounds, this chuck is a straightforward drop-in replacement for worn or damaged keyless chucks in shop and field service environments. Machinists, maintenance technicians, and tool-room personnel are the primary installers.\u003c\/p\u003e\u003cp\u003eThis chuck is suited for light-duty to medium-duty drilling applications in steel, aluminum, wood, and plastics. The JT33 taper is common on benchtop drill presses, handheld corded drills, and some lathes used for secondary operations. The keyless design allows bit changes by hand without a chuck key, reducing setup time during production work or service calls. It is appropriate for both shop use and field maintenance where a compact, reliable chuck is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKeyless jaw actuation — no chuck key required for bit changes\u003c\/li\u003e\n\u003cli\u003eCapacity range: 1\/32 inch minimum to 3\/8 inch maximum\u003c\/li\u003e\n\u003cli\u003eJT33 tapered mount for secure, tool-free spindle installation\u003c\/li\u003e\n\u003cli\u003eBall bearing internal construction for smooth jaw movement and concentricity\u003c\/li\u003e\n\u003cli\u003eSteel chuck body for durability in production and service environments\u003c\/li\u003e\n\u003cli\u003e40 millimeter sleeve diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct replacement for JT33 tapered-mount keyless drill chucks on benchtop drill presses, handheld drills, and similar rotary spindle equipment that accept a 3\/8 inch maximum shank capacity.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or maintenance technician familiar with tapered spindle fits. Disconnect and lock out all power to the machine before removing the existing chuck. Seat the JT33 taper firmly by hand, then use a soft mallet or drawbar method appropriate to the host machine — consult the machine manufacturer guidelines before driving the taper. Inspect the spindle taper bore for wear or damage before seating the replacement chuck.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Chuck Capacity\u003c\/strong\u003e: 1\/32 inch (0.0313 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Chuck Capacity\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Size\u003c\/strong\u003e: JT33\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Type\u003c\/strong\u003e: Keyless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type\u003c\/strong\u003e: Ball\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: 40 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosed Length\u003c\/strong\u003e: 86 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Length\u003c\/strong\u003e: 79 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.23 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: CKS1007020MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51729187799346,"sku":"CKS1007020MSC","price":124.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3531152b5815bf408baa00226c42c707.jpg?v=1788701654","url":"https:\/\/voomisupply.com\/products\/accupro-cks1007020msc-keyless-drill-chuck-3-8-in-jt33","provider":"Voomi Supply","version":"1.0","type":"link"}