This standard is for cutting edge sections typically used in earthmoving machinery defined in SAE J1507:

a. Tractor - Scrapers as defined in SAE J728.

b. Dozers as described in SAE J729 and J173.

c. Loaders as described in SAE J731.

d. Graders as described in SAE J870. Hole spacing is defined for dozers and scrapers in J737 and graders in J739. Hole conformation is defined in J740.

Purpose—

This standard specifies dimensions for cutting edge cross section.

Customers who purchased SAE J738
also purchased

• ASME B18.2.3.9M : Metric Heavy Hex Flange Screws-Supersedes IFI 538:1982
• SAE J1057 : Identification Terminology of Earthmoving Machines
• SAE J739 : Cutting Edge—Curved Grader
• SAE J740 : Countersunk Square Holes for Cutting Edges and End Bits-This document has been declared "Stabilized" by SAE

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