178B Fillet or Radius Gage, Inch Reading, 7/64-1/2" Range (Concave and Convex), 64ths Increments, 32 Leaves 50666

The Starrett 178 Series Fillet or Radius Inch Reading Gages are very useful for tool and diemakers, machinists, screw machine operators, patternmakers and other mechanics to lay out and check radii of tools, dies, patterns, and more. 32 Leaves, 17/64-1/2" Range, 64ths increments.

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  • Very useful for tool and diemakers, machinists, screw machine operators and patternmakers to lay out and check radii of tools, dies, and patterns
  • Made of nicely finished, high quality steel
  • 17/64-1/2" concave and convex reading
  • Includes 32 leaves


  • Range (in): 17/64-1/2"
  • Increments: 64ths
  • Number of Leaves: 32


    Member of Kit
    Item #DescriptionPart No.QtyInformation
    1CASE, FRONT12242-01
    2CASE, BACK13087-01
    3NUT, .125-4018259-01
    4NUT, .125-4012230-01
    7LEAF, CONCAVE 31/6407735-151
    8LEAF, CONCAVE 1/207735-161
    9LEAF, CONVEX 17/6407736-11
    10LEAF, CONVEX 9/3207736-21
    11LEAF, CONVEX 19/6407736-31
    12LEAF, CONVEX 21/6407736-51
    13LEAF, CONVEX 11/3207736-61
    14LEAF, CONVEX 23/6407736-71
    15LEAF, CONVEX 3/807736-81
    16LEAF, CONVEX 13/3207736-101
    17LEAF, CONVEX 27/6407736-111
    18LEAF, CONVEX 7/1607736-121
    19LEAF, CONVEX 29/6407736-131
    20LEAF, CONVEX 15/3207736-141
    21LEAF, CONVEX 31/6407736-151
    22LEAF, CONVEX 1/207736-161
    23LEAF, CONCAVE 19/6407735-31
    24LEAF, CONCAVE 3/807735-81
    25LEAF, CONCAVE 15/3207735-141
    26LEAF, CONVEX 5/1607736-41
    27LEAF, CONVEX 25/6407736-91
    28LEAF, CONCAVE 17/6407735-11
    29LEAF, CONCAVE 9/3207735-21
    30LEAF, CONCAVE 5/1607735-41
    31LEAF, CONCAVE 21/6407735-51
    32LEAF, CONCAVE 11/3207735-61
    33LEAF, CONCAVE 23/6407735-71
    34LEAF, CONCAVE 25/6407735-91
    35LEAF, CONCAVE 13/3207735-101
    36LEAF, CONCAVE 27/6407735-111
    37LEAF, CONCAVE 7/1607735-121
    38LEAF, CONCAVE 29/6407735-131


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