1992 Johnson Evinrude "EN" 9.9 thru 30 Service Repair Manual, P/N 508142, Page 53Get this manual
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Drill Size Conversion Chart SHOWING MILLIMETER SIZES, FRACTIONAL AND DECIMAL INCH SIZES AND NUMBER DRILL SIZES
2.2 2.25 2.3 2.35
2.38 2.4 2.45
3.1 3.18 3.2 3.25