1990 Johnson Evinrude "ES" 40 thru 55 Service Repair Manual, P/N 507872, Page 53Get this manual
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Drill Size Conversion Chart SHOWING MILLIMETER SIZES, FRACTIONAL AND DECIMAL INCH SIZES AND NUMBER DRILL SIZES
76 75 74 73 72 71 70 69 68 132
67 66 65 64 63 62 61 60 59 58 57