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A-A-51133 Revision A, January 30, 1990
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HOLDER, PLANER AND SHAPER, ADJUSTABLE
Includes all amendments and changes through Cancellation Notice 1, March 8, 1999
Additional Comments: CNCL NO S/S
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This description covers tool holders that are designed to hold and support cutter bits that are used on metal working planers and shapers.

The tool holders shall be of the sizes specified in table I. The size to be furnished shall be as specified (see 6.1). All tolerances of dimensional data shall be the same as the tolerances on the manufacturer's part drawings. TABLE I. Adjustable planer and shaper tool holder, sizes and capacities.
Width of notched      Size of tool bit
Tool      Shank        Shank     Shank       tool channel;             furnished
holder    thickness;   height;   length;        inches         cross-section length
size      inches       inches    inches       min.     max.       inches     inches
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  4          ⅜          ⅞     5-½      0.327     0.351   5/16 × 7/16    3
  0          ⅝        1-¼     6-⅛      0.327     0.351   5/16 × 7/16    3
  1          ¾        1-½    7-9/16      0.390     0.427   ⅜  ×  ½    3-½
  2        1-⅛        1-¾   10           0.515     0.543   ½  ×  ¾    4-½
  3        1-⅜        2        12-½      0.640     0.678   ⅝  ×  ⅞    5