After snapping off all but one stud on my snow/dirt blade I decided to upgrade to new studs. I could have drilled out the old studs but didn't want too. As you can see, I first ground off/down the old studs. I then drilled 3/8 holes in 3/8" stock and cut to length. I then welded in the new bolts and ground off the backs. I then installed them on the blade. Ready for snow.....if we ever get it!