Sizes Vary from 6.35mm - 84.93. Sizes from 6.35mm - 21.40mm. H-15 1.1/2" - 1.13/16" (38.10 To 46.03mm) - Square Shank 21.10mm. H-14 1.11/32" - 1.1/2 " ( 34.10 - 38.10 mm) - Square Shank 16.10mm. H-13 1.3/16" - 1.11/32 " ( 30.10 - 34.10 mm) - Square Shank 14.70mm.
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