Range (inch): .250-.312""
Range (metric): 6-8mm
54-343-011 Fowler/Bowers Replacement XT Heads with Spherical Anvils: .250-.312"/6-8mm
The Fowler/Bowers 54-343-011 Replacement XT Heads with Spherical Anvils has the following specifications:
The Fowler/Bowers XT measuring heads are only compatible with Fowler/Bowers XT bore gages. The XT heads are compatible with the following Fowler/Bowers bore gages:
Individual Fowler/Bowers XT Spherical Anvils Holematic Heads: