Here’s a little tutorial on how to sharpen two-blade broadheads. I would put the edge attained from this method of sharpening up against any other. Since there seem to be a lot of folks who struggle with the Simmons heads, we’ll use an Interceptor for this demo.
There are two important factors in sharpening. The first is grinding a burr, or wire edge, on each side of the blade. The second is grinding this burr off. If you do not achieve a razor sharp edge, you have failed to do one of these steps completely.
Here are the items we will be using. First is a standard bench grinder with a waxed grinding wheel.
Next, I always use a Razor Edge Arrowhead Guide.
And, of course, our hone. With the Simmons heads, you must use a hone with a round or convex surface to accommodate the concave edge. This is a Hewlett Jewel Stik 3 in 1. It works extremely well with any two-blade broadhead or knife I have tried. It will even work for bleeder blades. It has a coarse grit for grinding your burr, and a medium and fine grit for burr removal. (NOTE: The finer grit you use to remove the burr, the finer your edge will be.)
One of the main reasons people have trouble with Simmons heads, aside from the concave edge, is they lack sufficient relief in the factory grind. (This can also be the case with other brands of heads.) As you can see from this photo, the grind angle is much too steep.
What we want to do is grind relief in the blade at a much shallower angle. This will allow us to immediately begin “working” the edge of the blade. We want to take the grind to somewhere near this point. (NOTE: You will only have to grind more relief into the blade the first time you sharpen it.)
NOTE: Even if you want to sharpen your heads with a Simmons Wheelie Sharpener or
Accu-sharp, if you grind more relief into the head, you will get a sharper edge
quicker.
There are several ways to do this, but I have found a bench grinder to be the most efficient way to remove this much metal. This is a standard medium grit wheel. To prevent heat build up, I apply wax to the wheel. (You'll want to do this frequently.)
Mount your broadhead on a shaft, or piece of shaft, to give you better control.
Begin grinding at an extreme angle. This will take you a few tries to get a feel for it. I try to grind as close to the ferrule as possible without hitting it.