- A 1 in. cut-on-contact fixed blade head or a chisel tip with 1in fixed
blade and 1-3/4 in cross opening curved mechanical blades
- Weight: 100 gr.
The technology of the Grave Digger is a blend of old and new.
The Old technology is in the design of the Grave
Digger in the closed position. In the closed position the Grave Digger
is a 1 in cut on contact 2 blade broadhead with 1/2 in. bleeders. This
design goes back to the Bear razor head in its simplicity but
effectiveness. There are many broadheads on the market today with this
simple design that fly great out of todays high speed bows but lack the
cutting diameter that todays hunter want. The 1 in. main blade is a small
blade from front to back but still maintains a 2 to 1 blade angle due
to the double grind on the blade. Most small fixed blade broadheads have
a 1.5 to 1 and some even have a 1 to 1 blade angle. This creates a
flatter blade angle resulting in less penetration. ( like pushing a
blade of a knife down through a piece of meat instead of slicing it )
The kickout blade design and retention system is new design.
The blades are curved for a few reasons:
First is that they penetrate better with there being less friction on
the blade. When you see the Grave Digger in the closed position the tip
of the blade on the right side is actually the left blade and visa
versa. This achieves 3 things:
1) The mass of the blade is on the opposite side
of the screw pin than the tip. What this does is at the initial shot
from the bow the blades are seated or pushed back into the bottom of the
ferrule so they are not forced open as with most mechanical.
2) The tip of the blade that is exposed acts as a
leverage point when the blade contacts the animal, which creates less
energy to open the blades, thus retaining more of the KE of the arrow.
Resulting in better penetration.
3) Being that the blades cross each other, gives the opportunity to use the retention system.
The Grave Digger kickout blades are sharpened to the tip so they cut on impact unlike other mechanicals.
The reason other mechanicals have blunt ends is to
trigger the opening of the blades. As stated above the Grave Digger
blade design needs less energy to open do to the pivot point, so the
blades can be sharp not blunt. This is especially important on thick
hided animals such as elk, moose and larger game. The kickout blades on
the Grave Digger are cutting through the hide as they open resulting in
better penetration. They will also cut bone on the way in the animal.
Grave Digger blade retention.
The blade retention system on the Grave Digger is
simple in design with no rubber bands, O-rings or clips to hold them in
place. Each blade has been dented to create a bump on the opposite side
of the blade. When in place the bumps face each other. When closing the
kickout blades these bumps cross each other and create a stable
unchanging holding system. You can adjust the tension on the blades to
your own likes by just tightening or loosening the screw pin that holds
them in place. This gives the hunter that is shooting through ground
blind mesh the opportunity to tighten the screw pin a little to assure
the blades do not open on the mesh but do on the animal.
The hunter can also adjust the blades looser if they are shooting low
poundage and want to have the blades open easier.