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Three Arm Knob

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  • Three Arm Knob
  • Three Arm Knob
  • Three Arm Knob
  • Three Arm Knob
  • Three Arm Knob
  • Three Arm Knob


These Three Arm Knobs can be used as hold down clamps for your CNC Machine and make for a quick, easy adjustment for part swap outs or position changes, whilst requiring little to no maintenance.

 "To make simple hold downs for your CNC machine which may be similar to the OpenBuilds Ox CNC Machine,  you try adding these Three Arm Knobs in conjunction with 1/4" Flat Washers as shown in the above photo."

 Product Detail

  • Qty. 1
  • 1/4"-20 x 1-1/2" Thread
  • Stud: 1-18" Diameter
  • Threaded Steel/Black Phenolic
  • Color: Silver/Black

OpenBuilds Part CAD Models and Drawings 









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