
Precision metal apertures in 10 micron steps to determine head size of .25 pellets - 0.008" thick 304 stainless gage, acrylic frame. Apertures from 6.33 to 6.42 mm, accurate to +/- 0.0025 mm.
Precision metal apertures in 10 micron steps to determine head size of .25 pellets - 0.008" thick 304 stainless gage, acrylic frame. Apertures from 6.33 to 6.42 mm, accurate to +/- 0.0025 mm.