{"product_id":"accupro-np01340400msc-cat40-keyless-drill-chuck-1-2-in","title":"Accupro NP01340400MSC CAT40 Keyless Drill Chuck 1\/2 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO NP01340400MSC is a keyless drill chuck designed for CNC machining centers and milling applications requiring a CAT40 integral shank mount. It accepts drill shanks from 1\/32 inch (0.0313 inch) up to 1\/2 inch (0.5000 inch), making it suitable for a wide range of drilling, reaming, and light boring operations. The chuck features a ball bearing design and a steel construction, with a sleeve diameter of 48 mm and a total indicated runout (TIR) of 0.0016 inch. A spanner wrench is included. The unit weighs 4.1 pounds and is intended for installation by qualified machining or toolroom personnel.\u003c\/p\u003e\u003cp\u003eThis chuck is used in vertical and horizontal machining centers equipped with CAT40 taper spindles. It is well-suited for production environments where frequent tool changes are required, since the keyless design allows hand-tightening without a chuck key. Closed length is 126 mm and open length is 115 mm, which affects Z-axis clearance planning in close-tolerance setups. Typical applications include drilling operations in ferrous and non-ferrous materials across job shop and production floor environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKeyless design allows rapid tool changes without a chuck key\u003c\/li\u003e\n\u003cli\u003eCAT40 integral shank mount for direct spindle engagement\u003c\/li\u003e\n\u003cli\u003eCapacity range of 1\/32 inch to 1\/2 inch covers standard drill shank sizes\u003c\/li\u003e\n\u003cli\u003eBall bearing construction supports smooth chuck operation and consistent grip\u003c\/li\u003e\n\u003cli\u003eTIR of 0.0016 inch for accurate, repeatable hole positioning\u003c\/li\u003e\n\u003cli\u003eIncludes spanner wrench for chuck body adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CAT40 taper spindle machining centers accepting integral shank drill chucks in the 1\/32 inch to 1\/2 inch capacity range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician familiar with CAT40 toolholding systems. Power down and lock out the spindle drive before mounting or removing the chuck. Ensure the spindle taper and chuck shank are clean and free of chips or oil film before seating to maintain runout performance. Verify Z-axis clearance against closed length before initiating a cycle.\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 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Chuck Capacity\u003c\/strong\u003e: 1\/2 inch (0.5000 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Integral Shank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Size\u003c\/strong\u003e: CAT40\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\u003eShank Type\u003c\/strong\u003e: Taper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSleeve Diameter\u003c\/strong\u003e: 48 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosed Length\u003c\/strong\u003e: 126 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Length\u003c\/strong\u003e: 115 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR\u003c\/strong\u003e: 0.0016 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Spanner Wrench\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.1 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: NP01340400MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51737411158322,"sku":"NP01340400MSC","price":650.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bdbb74d049e5ecfc19d36f605e8c0b02.jpg?v=1788788207","url":"https:\/\/voomisupply.com\/products\/accupro-np01340400msc-cat40-keyless-drill-chuck-1-2-in","provider":"Voomi Supply","version":"1.0","type":"link"}