Dudes I copied and Pasted this Info......For those of you who don't know it, you can drill your jets out for larger sizes instead of spending big bucks to acquire a vast selection. You can also solder the ends closed and redrill them smaller if you are so inclined. Of course, the millionaires among you will scoff at this, so please ignore. Those of you however like me who have more time than money can read on.
After some surfing I've calculated that you can use the following drill bits to come close to the sizes needed, or actually be bang on with many of them. So here goes. Remember that a jet marked 120 is 1.20mm in size, 135 is 1.35mm etc. Perhaps those who know more accurately can correct me if I'm way out on this, but I think I'm close. 50 #76 55 #74 approx. 60 #73 65 #71 approx. 70 #70 75 #69 approx. 80 #68 85 #66 approx. 90 #65 95 #63 100 #61 105 #59 110 #57 120 3/64th's 130 #55 140 #54 150 #53 160 1/16th's 165 #52 approx.170 #51 180 #50 185 #49 195 #48 200 #47 205 #46 210 #45 220 #44 225 #43 230 #43 approx (close to 225) 245 #41 250 #40