• Part #: 52-255-768

    XTA Large Capacity Holemike Set # 52-255-768

    XTA Large Capacity Holemike Set # 52-255-768

    Manufacturer: Fowler

    Range/Size: 20-50mm

    Graduations: .005mm

    Price: $2,479.62 

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    Product Description:

    52-255-768 Fowler/Bowers XTA Mechanical Holemike Set: 20-50mm

    The 52-255-768 XTA Mechanical Holemike set contains the following:

    • 52-255-415 Fowler/Bowers XTA Holemike Set: 20-25mm
    • 52-255-416 Fowler/Bowers XTA Holemike Set: 25-35mm
    • 52-255-417 Fowler/Bowers XTA Holemike Set: 35-50mm
    • 54-332-009 Fowler/Bowers XT Setting Ring: 20mm
    • 54-332-010 Fowler/Bowers XT Setting Ring: 35mm

    The Fowler/Bowers XTA holemike sets of mechanical two and three point bore micrometers are now available with extended travel. The extended travel or "XT" is availalbe on all heads between .080-12"/2-300mm. Operators are now able to measure larger ranges with a single bore micrometer without having to interchange the anvils and recalibrate the gage. The Fowler/Bowers XTA series of internal micrometers are one of the most popular brands of bore micrometers and are known for great quality.

    The Fowler/Bowers 52-255-768 XTA Holemike Set has a mechanical readout for each of the XT heads containted in this bore gage set. Having a single mechanical readout for each XT measuring head saves operators time as mechanical holemikes are more time consuming to calibrate compared to electronic versions.


    • Graduations 0.00025" (0.005mm)
    • 2-pt contact measuring anvils below .250"/6mm
    • Tungsten carbide measuring anvils on all 3-point XT heads above .5" (12.5mm)
    • Blind bore measuring above .500"/12.5mm
    • Ratchet stop for consistent measuring to ensure better repeatabililty among operators
    • Non-removeable anvils
    • Optional extensions are available for deeper bore measurements
    • Setting rings included in all sets
    • Includes UKAS certificates for all Holemikes and setting rings
    • Every gage is individually serialized

    Below is a list of the individual XTA Mechanical Holemike Bore Gages that measure in metric:

    Large Capacity Sets:

    Individual Sets:

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