2007-2008 Polaris IQ Snowmobiles Service Manual, Page 54Get this manual
General Information SAE Tap Drill Sizes
Thread Size Drill Size #0-80 364 #1-64 53 #1-72 53 #2-56 51 #2-64 50 #3-48 564 #3-56 45 #4-40 43 #4-48 42 #5-40 38 #5-44 37 #6-32 36 #6-40 33 #8-32 29 #8-36 29 #10-24 24 #10-32 21 #12-24 17 #12-28 4.6mm 14-20 14-28 516-18 516-24 38-16 38-24 716-14 716-20 2564 Thread SizeDrill Size 12-13 2764 12-20 2964 916-12 3164 916-18 3364 58-11 1732 58-18 3764 34-10 2132 34-16 1116 78-9 4964 78-14 1316 1-8 78 1-12 5964 18-7 6364 18-12 364 14-7 764 14-12 1164 12-6 1132 12-12 2764 34-5 916 34-12 4364 2-4 12 2532 2-12 5964 14-4 12 132 12-4 14 34-4 12 3-4 34