Starrett Magnetic Base Universal Indicator Holder Arm Assembly, EDP 64438 – 657-3

This versatile indicator arm has three pivots available for positioning the indicator where needed. All pivots are controlled by one tightening knob. Universal Indicator Holder Arm Assembly only.

Features

• Works with any indicator with a 3/8″ (9.5mm) stem (such as our 25 and 650 and 651 Series)
  
• Works with any indicator with a standard dovetail mount (such as our 708, 709, and 811 Series)
  
• Works with any indicator with a 1/4″ (6.3mm) shank (such as our 196 Series)
  
• Works with any indicator with a 3/16″ (4.7mm) shank (such as our 708, 709, 811 and 711 Series)
  
• Works with any indicator with a body clamp (such as our 711 Series)
  
• The working area is within a hemisphere having a radius of approximately 12″ (300mm)
  
• The very sensitive fine-adjustment is located on the magnetic base to eliminate indicator deflection when it is being adjusted
• The 657-3 Universal Indicator Holder Arm Assembly can also be used on the 659P Base using the 659 Thread Adaptor, PT18320

Specifications

• Made in America: Yes
  

See all Starrett 657-1, 657-2 Magnetic Base Universal Indicator Holders