Short Answer: Most abrasive sizes will work with most nozzle IDs, except a few.

As a rule of thumb, your nozzle inner diameter (ID) width should be at least 3 times the size of your grit size as a bare minimum.

Based on multiple charts and calculations, the numbers are all roughly based and each chart has a slight discrepancy from each other. However, it is accurate enough to give a rough guideline for selecting the correct abrasive. I ran the calculations and created the below chart from referenced data which compares the grit size to the typical maximum inch diameter of abrasive from Media Blast.

All you need to do is follow your grit size over to the right column to see what nozzle ID can accommodate it. The majority of the abrasive grit sizes are estimated to work with even the smallest known nozzle ID size (1/16″).

However, a courser abrasive may increase the chance of an occasional clog if used with a small ID size. So if you are using a 54 grit size with the small 1/16” nozzle, you may have to reduce the output of abrasive to air ratio from the sandblaster hose. In this scenario, I would suggest playing it safe by going with at least the next larger nozzle size (which is the 3/32” ID).

Minimum Nozzle ID to Grit Size Chart

Grit Size	Corresponds to Be Suitable for Nozzle ID:
16	1/4” nozzle and larger
20	3/16” nozzle and larger
24	3/16” nozzle and larger
30	1/8” nozzle and larger
36	3/32” nozzle and larger
46	3/32” nozzle and larger
54	All Nozzle Sizes: 1/16” nozzle and larger
60	All Nozzle Sizes: 1/16” nozzle and larger
70	All Nozzle Sizes: 1/16” nozzle and larger
80	All Nozzle Sizes: 1/16” nozzle and larger
90	All Nozzle Sizes: 1/16” nozzle and larger
100	All Nozzle Sizes: 1/16” nozzle and larger
120	All Nozzle Sizes: 1/16” nozzle and larger
150	All Nozzle Sizes: 1/16” nozzle and larger
180	All Nozzle Sizes: 1/16” nozzle and larger
220	All Nozzle Sizes: 1/16” nozzle and larger
240	All Nozzle Sizes: 1/16” nozzle and larger