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BIG DAISHOWA MEGA New Baby Chuck
MEGA New Baby Chuck is BIG DAISHOWA's precision collet-chuck system for drilling, reaming, tapping, and finish end milling. The body, collet, nut, and wrench are designed as a high-speed assembly, so an RFQ or replacement request should identify the spindle interface, chuck size, projection, collet, cutting-tool shank, and coolant arrangement rather than naming the family alone.
Product system overview
MEGA New Baby Chuck is BIG DAISHOWA's precision collet-chuck system for drilling, reaming, tapping, and finish end milling. The body, collet, nut, and wrench are designed as a high-speed assembly, so an RFQ or replacement request should identify the spindle interface, chuck size, projection, collet, cutting-tool shank, and coolant arrangement rather than naming the family alone.
Industries and applications
- High-speed drilling, reaming, tapping, and finish end milling where runout and balance affect tool life and part quality.
- Mixed tool cribs that need a broad collet range across BIG-PLUS, HSK, BIG CAPTO, and other interfaces.
- Replacement or expansion requests where the existing holder, NEW BABY collet, nut, wrench, projection, and coolant delivery must remain compatible.
Technical and quote details
- System architecture: precision-ground chuck body, NEW BABY collet, dedicated nut, and matching wrench designed as a high-speed assembly.
- BIG DAISHOWA specifies maximum runout of 0.00004 in at the collet nose and 0.00012 in at 4xD for its AA-grade NEW BABY collets.
- The official product directory lists hundreds of interface, capacity, and projection combinations; the complete catalog number is required to identify one holder.
- Two-way coolant supply and multiple taper and length choices are available, but the exact nut, collet, and holder configuration controls compatibility.
- Representative catalog numbers below are examples from the official directory, not a complete range or a claim of current stock.
- Compatibility, lineage, or lifecycle crosswalk: holder-to-collet to BIG DAISHOWA NEW BABY collets matching the holder N-size (conditional). Match N-size, clamping range, nut, coolant path, and holder generation. Evidence: https://www.bigdaishowa.com/en/products/tool-holders/collet-chucks/mega-new-baby-chuck
Selection notes
Record the full holder catalog number plus the collet, nut, wrench, tool-shank diameter, projection, spindle interface, coolant requirement, and target speed.
Use the official product directory for current variants and the document library or DXF/STEP search for dimensional confirmation.
Variables to validate
- The family name does not identify spindle interface, collet series, capacity, projection, nut, balance limit, or coolant path.
- Runout depends on the complete holder-collet-nut assembly, clean contact surfaces, correct tightening, cutting-tool shank quality, and measurement method.
- Availability and dimensional coverage change; verify the full catalog number in BIG DAISHOWA's current directory before ordering.
Official product references
We work to keep this information reliable, but specifications and availability can change. Verify critical details with the manufacturer through the official resources above.