REVISIONS ZONE | REV | FINISHES | GAGE 605,612 & 630 13ga. 090 2155 = 1375 | 500 4.875 1.230 wef | a 1.813 ) : 750 @.370 11,950 k= COSTNER FIR #12 SCREW DON-JO MFG. INC.