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Fowler Bowers - XT500 Large Diameter Bore Gage Sets - LARGE RANGES

Fowler Bowers - XT500 Large Diameter Bore Gage Sets - LARGE RANGES

Starting at $10,853.81 $9,768.00

11.811 - 19.685" - XT500 Large Diameter Bore Gage Complete Sets

Supplied with digital display handle, measuring head with exchangeable anvils and setting ring with UKAS certificate.

  • The Bowers XT500 large diameter 3-point bore gage has been designed specifically for the measurement of internal diameters between 300mm (11.811") and 500mm (19.685").
  • The newly designed constant-force digital readout ensures that the measuring pressure remains constant throughout the measurement while radiussed measuring anvils provide optimum centralization in the part. Anvil sets are supplied in 25mm" steps and each set has been manufactured to the exact toleranced size. The 300mm"-500mm" anvils are the master reference set and are used for setting the gage in the setting ring.
  • The other anvil sets are then fitted as required without further re-setting.
  • This means that only one 300mm setting ring is required to set the gage for all diameters in the full 300mm to 500mm range of the instrument.
Additional Information +
Item No. Range RemarksMSRP Our Price QTY
54-370-201-0 11.811 - 15.748" (300 - 400mm) $10,853.81 $9,768.00
54-370-203-BT 11.811 - 19.685" (300 - 500mm) $16,916.97 $15,224.00


Instruction Manual


  • Measuring range: 300mm/11.811" to 500mm/19.685"
  •  New constant-force digital readout
  • Single 300mm setting ring covers full range
  • Radiussed anvils of tool-steel for optimum centering
  • Accuracy: ±15µm
  • Repeatability: 3µm
  • IP65 electronics
  • RS-232 output and USB connectivity
  • Resolution: .0005"/.00005" (0.01/0.001mm). Metric/Inch switchable
  • Fast accurate measurement
  • Extensions available for deeper bores (max depth 2.5m)
  • UKAS certificate with setting ring
  • Certificate of conformity with bore gage
  • Supplied in fitted case

Technical Specs:

Ranges 11.811 - 15.748"