Hi, I am hoping someone out there can help me. I just got my first pack of Grizzly Single Bevel heads---120 grains (green blades). I had read all of the great advantages offered by single bevel heads and had also heard that they were a challenge to sharpen. I have no trouble getting double bevel heads shaving sharp with a file. Well after 2.5 hours spent trying to get one head shaving sharp last night, another half hour this morning, and another hour with a friend who is very good at sharpening anything we have a broadhead that is about 25 grains lighter in weight than original and quite a bit slimmer and is no where near shaving sharp. I did shoot it into a foam deer target and was amazed at the penetration. My friend thought that maybe these broadheads don't get "shaving sharp" and that the way I had them would be just fine for hunting.
Here's what I tried:
Used a file over the bevel keeping it true to 25 degree bevel. Once there was a burr along the edge I removed it with the file flat on underside.
Next I tried a Loray sharpener (like Lansky) but the jig did not give me a steep enough angle to reach the edge.
Next I tried a very low speed belt sander which raised a very visable burr the length of the edge--I then removed the burr with a stone.
Finally I tried the KME jig that you run across a stone and found it to work really well at keeping a true angle---got a good burr and removed it per their instructions for single bevel.
I can run the edge over my finger with light pressure and not get cut, hold the head in my hand and not get cut, it will definitely not shave the hair on my arm. It will cut a rubber band or through nylon twine and it does penetrate well. Should I sharpen rest with KME to burr, remove the burr and feel they are ready to hunt? I am about ready to give up on the single bevel deal. BTW my I think my wife is about ready to have me committed when she realized that I've spent 5+ hours on one broadhead.
Any advice would be appreciated.
Thanks, John