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Coaxial Indicator Specifications

801 (Inch) – Premium Coaxial Indicator Specifications

 

  • Locating accuracy: To within .0002 in. of true center.
  • Graduation on Dial Face: .0005 in.
  • Length: 6 7/8 in.
  • Shank 3/8 dia. x 7/8 in. long
  • Weight 9 1/2 oz. net, 1 LB. 14 oz. shipping weight
  • Feeler ball 1/8 in. dia.
  • Measuring Range .250 axis offset
  • **Capacity Internal, 5/32 to 4 1/4 dia.- External, zero to 4 1/4 dia.
  • Speed It is recommended that operating speed not exceed 800 RPm approx.
  • Inital positioning: Within 7/16 dia. circle of true location.

*Capacity can be increased to 12″ diameter by use of accessory feelers

801 (Metric) – Premium Coaxial Indicator Specifications

 

  • Locating accuracy: To within .005 mm  of true center.
  • Graduation on Dial Face: .01 mm
  • Length: 6 7/8 in.
  • Shank 10 mm dia. x 7/8 in. long
  • Weight 9 1/2 oz. net, 1 LB. 14 oz. shipping weight
  • Feeler ball 1/8 in. dia.
  • Measuring Range .250 axis offset
  • *Capacity Internal, 5/32 to 4 1/4 dia.- External, zero to 4 1/4 dia.
  • Speed It is recommended that operating speed not exceed 800 RPM approx.
  • Initial positioning: Within 7/16 dia. circle of true location.

*Capacity can be increased to 12″ diameter by use of accessory feelers

801-R (Refurbished) – Coaxial Indicator Specifications

 

  • Locating accuracy: To within .0002 in. of true center.
  • Graduation on Dial Face: .0005 in.
  • Length: 6 7/8 in.
  • Shank 3/8 dia. x 7/8 in. long
  • Weight 9 1/2 oz. net, 1 LB. 14 oz. shipping weight
  • Feeler ball 1/8 in. dia.
  • Measuring Range .250 axis offset
  • *Capacity Internal, 5/32 to 4 1/4 dia.- External, zero to 4 1/4 dia.
  • Speed It is recommended that operating speed not exceed 800 RPm approx.
  • Inital positioning: Within 7/16 dia. circle of true location.

*Capacity can be increased to 12″ diameter by use of accessory feelers

801-E (Economy Coaxial Indicator) Specifications *Discontinued*

 

 

  • Locating accuracy: To within .0010 in. of true center.
  • Graduation on Dial Face: .0010 in.
  • Length: 6 7/8 in.
  • Shank 3/8 dia. x 7/8 in. long
  • Weight 9 1/2 oz. net, 1 LB. 14 oz. shipping weight
  • Feeler ball 1/8 in. dia.
  • Measuring Range .250 axis offset
  • *Capacity Internal, 5/32 to 4 1/4 dia.- External, zero to 4 1/4 dia.
  • Speed It is recommended that operating speed not exceed 800 rpm approx.
  • Initial positioning: Within 7/16 dia. circle of true location.

*Capacity can be increased to 12″ diameter by use of accessory feelers

Featured Products

Dial Graduation Values for 801 (INCH)

The graduation increments changes based on the feeler length and workpiece diameter size as listed in above chart.

Additional NOTES

 The Blake COAXIAL INDICATOR is a centering device. It requires a reading of both sides of the bore or boss in each axis, to arrive at the center. Its sole function is to find center. It is NEVER to be used as a measuring instrument.


You cannot certify the COAXIAL INDICATOR on a surface plate. It must be put in a spindle of a machine that it would normally be used in and indicate a precision ring or plug. Then remove it and use a .0001 indicator to check that your are on center.


The CO-AX INDICATOR is made to be used under power. When checking the CO-AX position with a test indicator, the spindle should be rotated manually for both indicators due to the fact that spindle torque under power on some machines will give a different reading for center.


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