91B Tap Wrench 50420

The Starrett 91 Tap Wrench is strong and well proportioned. It is nicely finished and the gripping surface is properly tempered. It will firmly hold square or round shanks. It is plunger operated by knurled sleeve, the spring inside the sleeve causes plunger to back off when pressure is removed. 9" (225mm) Length, 3/16-1/2" (4.7-12.7mm) Tap Size.

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  • Strong and well-proportioned
  • Tempered gripping surfaces firmly hold square or round shanks
  • Plunger operated by knurled sleeve
  • Spring inside sleeve causes plunger to back off when pressure is removed
  • Round shanks can be gripped, but care must be used. Excessive pressure may break the moveable V-jaw


  • Capacity Tap Size (in): 3/16-1/2"
  • Capacity Tap Size (mm): 4.7-12.7mm
  • Body Length (in): 9"
  • Body Length (mm): 225mm
  • Square Shank (in): 5/32-9/32"
  • Square Shank (mm): 4-7mm


    Member of Kit
    Item #DescriptionPart No.QtyInformation
    10PIN, .062D X .266L03343-01
    20BODY #91B03335-01
    30NUT,.500-24 PLUNGER03337-01
    50SPRING, .289X.359X.875X.035X503345-01


    Catalog 33 - Section 17 - Precision Shop Tools

    This section offers quality tools that do not measure, but are needed frequently in manufacturing. Tools such as work positioning tools, scribers, punches, vises and lubricant are an integral part of any shop or manufacturing industry.

    Precision Hand Tools (Catalog 33)

    612 page catalog featuring precision hand tool, force measurement, vison systems, optical comparators, laser measurement, and flat stock.