43149FD1-18DE-283FD5americanlap.com/Catalog Scan.pdf · STANDARD AMERICAN HELICAL SLOT EXPANSION...
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43149FD1-18DE-283FD5americanlap.com/Catalog Scan.pdf · STANDARD AMERICAN HELICAL SLOT EXPANSION LAPS AND ARBORS are inches; DECIMAL EQUIVALENTS .015625 03125 4 .046875 -0625 4 .078125