2003 Polaris Deep Snow Snowmobiles Service Manual, Page 11Get this manual
GENERAL INFORMATION SAE Tap Drill Sizes
Thread Size #0-80 #1-64 #1-72 #2-56 #2-64 #3-48 #3-56 #4-40 #4-48 #5-40 #5-44 #6-32 #6-40 #8-32 #8-36 #10-24 #10-32 #12-24 #12-28 14-20 14-28 516-18 516-24 38-16 38-24 716-14 716-20 Drill Size 364 53 53 51 50 564 45 43 42 38 37 36 33 29 29 24 21 17 4.6mm 2564 Thread Size 12-13 12-20 916-12 916-18 58-11 58-18 34-10 34-16 78-9 78-14 1-8 1-12 18-7 18-12 14-7 14-12 12-6 12-12 34-5 34-12 2-4 12 2-12 14-4 12 12-4 34-4 3-4 Drill Size 2764 2964 3164 3364 1732 3764 2132 1116 4964 1316 78 5964 6364 364 764 1164 1132 2764 916 4364 2532 5964 132 14 12 34