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3977 Emerald Dr., Kalamazoo, MI 49001
Super Thin Low Profile Round Chucks
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Series NBK
The Ultimate Low Profile 3-Jaw Universal Chuck

  • Three operating pinions positioned at a 45 degree angle for easier operation
  • Sizes available 6, 8, 10 and 12 inch diameter
  • Easy Installation with flange type mounting
  • One Year Warranty
  • Accurate .001" repeatability on duplicate parts using the nominated pinion
  • Ideal for Drill Presses, Standard Mills, Vertical Machining Centers, Angle Plates, Tombstones, and Grinding Machines
  • American Standard hard top and master jaws

See complete product details in our latest catalog >>

Table Test

Super Thin Low Profile Round Chucks
 Gripping capacity
Model Approx Weight External Internal
  Min.Max.Min.Max.
NBK6 24 lbs .31" 6.30" 1.89" 5.91"
NBK8 40 lbs .43" 7.87"2.44" 7.48"
NBK10 62 lbs .47" 9.84" 2.83" 9.41"
NBK12 95 lbs .59 " 11.81" 3.38 " 11.41"

Table Test

Dimensional Data (in inches)
Model A1 A2 B1 B2 C D E F
NBK6 8.66 6.69 2.28 0.71 5.12 5.79 1.77 0.24
NBK810.638.272.560.786.16.772.360.24
NBK10 12.4 10.04 2.87 0.78 7.48 8.27 3.15 0.24
NBK1214.57123.150.879.8411.224.130.21
Dimensional Data (in inches)
Model G H J K L M
NBK6 3-M10x1.5P 2.68 1.02 1.57 .394* 0.512
NBK8 3-M10x1.5P 3.23 1.1 1.69 .433* 0.512
NBK10 3-M12x1.75P 3.66 1.26 2.04 .472* 0.63
NBK12 3-M12x1.75P 4.64 1.57 2.32 .551* 0.708
*square drive