I have a 60 degree triangle ruler (Creative Grids) with the blunt end but opt to use the 60 degree line on my 6” x 24” ruler so it will not have those blunt ends. Those points come in handy for making lining up those blocks easier when you are putting it together. I’ve made several and taught classes for kaleidoscope quilts. I always recommended not using the blunt end ruler. Just my two cents. Either way: have fun!