THORN CROWN FIXED BLADE BROADHEAD 100 GR. 3 PK. Crown blades starting at the top at 5/8" followed yb a 3/4", followed by 7/8" and having a 1" blade at the bottom. Don't be fooled by the 1" cut diameter, the Crown with eight helix stacked cutting blades giving you 3.25" of cutting surface.