• NEVER use these tools in a case with a “LIVE Primer”.
•The .50 BMG Cal. Premium Flash Hole tool has a carbide cutting head that allows the brass chips to free flow from the cutter head while chamfering the flash hole at the case web.
•The tip of the tool has a gentle taper to help enter the flash hole.
•Just as our “Professional” flash hole tool, the “Premium” tool chamfer cut depth is controlled from the case web. So once the tool bottoms on the case web the cutting action is done regardless of overall case length variation.
• Insert the tool through the mouth of the case into the flash hole and grip the case with your hand. The tool shaft diameter guides the tool through the case neck to maintain the centerline of the cartridge. Rotate the tool handle with the other hand until you no longer feel the tool cutting.
•When your tool is in storage wipe a light oil on the tool steel shaft.
Rooftop Voter (verified owner) –
Have used these before when made with the aluminum body and I had no complaints. I would unscrew the small drill adapter and chuck the body proper in a 3/8” cordless Dewalt drill. Recently bought the solid stainless body unit and from the looks of it, the cutter unit will be an item you can replace when they get dulled out. What a difference in weight with the new one vs the old style. Tried it the other day, puts a nice radius on the floor of the primer hole and cleaned off the flash metal that is so common with military brass cases. Only have to do it one time and the case is ready for the next step in your individual prep sequence. Does uniforming the flash hole make that much of a difference? I like to think it does but I take the case prep as far as I can each time I initially process once fired brass that I purchase. Part of my multi-step discipline for reworking cases and this procedure, along with primer pocket swaging of milsurp brass that is only done once also, is just part of the steps I use.