2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 42Get this manual
General Information TAP DRILL SIZES
Thread Size Drill 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 38-24 716-14 716-20 364 53 53 51 50 564 45 43 42 38 37 36 33 29 29 24 21 17 4.6mm 2564