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  • Product Code: #54-366-020

    XTD Electronic Holemike # 54-366-020

    Range/Size: 1-1.375"/25-35mm

    Graduations: .00005"/.001mm

    Lowest Price Guaranteed

    Product Description

    ******************************DISCONTINUED PRODUCT******************************

    The Fowler-Bowers 54-366-020 XTD Electronic Holemike has now been discontinued and replaced by the new Fowler/Bowers XTD3 Digital Internal Micrometer: 54-367-021

    54-366-020 Fowler/Bowers XTD Electronic Holemike Bore Gage: 1.00-1.375”/25-35mm

    The 54-366-020 Fowler XTD Electronic Holemike set is made up of the following:

    • 54-342-017 Fowler XT Head: 1-1.375"/25-35mm
    • 54-332-010 Fowler XT Setting Ring: 1.375"/35mm
    • 54-364-552 Fowler XTD Electronic Holemike Readout: .750-2"/20-50mm

    The Fowler/Bowers XTD Electronic Holemikes are the new generation of the Fowler/Bowers bore micrometers. The XTD electronic holemike bore gages now have extended travel with fixed anvils. Operators no longer have to worry about switching out the anvils as in past generations. All XTD Electronic Holemikes come standard with a ratchet stop which ensures better repeatability among operators. The “two-button” electronics are easy to operate and have the capability of storing up to three preset sizes. The holemikes have RS-232 output and can be connected to a laptop or PC by cable (see below) or wirelessly.

    The 54-366-020 XTD Electronic Holemike Set comes with a 5-year warranty. These digital internal micrometers are manufactured in England by Bowers Metrology, one of the most respected bore gaging companies in the world. Top quality products usually come with a great warranty and the Fowler/Bowers XTD Electronic Holemikes are backed with the best warranty in the industry.


    • Large easy-to-read display
    • Direct inch/metric conversion
    • Ratchet stop for consistent measurement
    • Resolution: .00005"/.001mm
    • RS-232C output
    • Setting rings included in all sets
    • Includes UKAS certificates for all micrometers and setting rings
    • Special anvils available

    The Fowler 54-366-020 XTD Electronic Holemike has an accuracy of .00015”/.004mm.

    There are two RS-232 cables available that can be used with the 54-366-020 XTD Electronic Holemike:

    Below is a list of the XTD Electronic Holemike Bore Gages:

    Individual Sets:

    • 54-366-003 has a range of .080-.100”/2-2.5mm
    • 54-366-004 has a range of .100-.120”/2.5-3mm
    • 54-366-005 has a range of .120-.160”/3-4mm
    • 54-366-006 has a range of .160-.200”/4-5mm
    • 54-366-007 has a range of .200-.250”/5-6mm
    • 54-366-008 has a range of .250-.312”/6-8mm
    • 54-366-010 has a range of .312-.375”/8-10mm
    • 54-366-012 has a range of .375-.500”/10-12.5mm
    • 54-366-014 has a range of .500-.625”/12.5-16mm
    • 54-366-016 has a range of .625-.750”/16-20mm
    • 54-366-018 has a range of .750-1.00”/20-25mm
    • 54-366-020 has a range of 1.00-1.375”/25-35mm
    • 54-366-022 has a range of 1.375-2.00”/35-50mm
    • 54-366-024 has a range of 2.00-2.625”/50-65mm
    • 54-366-026 has a range of 2.625-3.25”/65-80mm
    • 54-366-028 has a range of 3.25-4.00”/80-100mm
    • 54-366-030 has a range of 4.00-5.00”/100-125mm
    • 54-366-032 has a range of 5.00-6.00”/125-150mm
    • 54-366-034 has a range of 6.00-7.00”/150-175mm
    • 54-366-036 has a range of 7.00-8.00”/175-200mm
    • 54-366-037 has a range of 8.00-9.00”/200-225mm
    • 54-366-038 has a range of 9.00-10.00”/225-250mm
    • 54-366-039 has a range of 10.00-11.00”/250-275mm
    • 54-366-040 has a range of 11.00-12.00”/275-300mm

    Large Capacity Sets:

    The 54-366-020 XTD Electronic Holemike set is also offered as an XTH Holematic Pistol Grip Set:

    • 54-566-725 XTH Holematic Pistol Grip Set: 1-1.375"/25-35mm
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