SilverFlame broadheads incorporate an amount of structural integrity that invariably one searches in vain with most other manufacturers. Only an ingenious construction, based on solid design, combined with the correct materials, constitutes a first-class product.
The facts speak for themselves:
FERRULE
Material: AlZnMgCu1,5 F53
Internationally better known under the ASTM designation 7075 T6
This high-strength aluminum alloy contains a tensile strength of 540 N/mm² which is approx. 1.5 times stronger than average construction steel and is used in many cases, where high-strength, but light materials are needed.
Aircraft engineers as well as the top technical designers of world class racing bicycles, appreciate the advantages derived from this material.
The ferrules are manufactured in a CNC process. They are in turn ground in a vibratory in order to remove even the finest remaining burr particles. The surface finish will be done with anodizing in the color black silk matt.
As technical characteristic the ferrules show a "round butt", thus a radius to the arrow shaft. Consequently the use of conical washers (U.B.A.R.'s etc.) is eliminated, thus minimizing retraction resistance of the arrow from the practice target.
The thickest portion of the ferrule has a diameter of 8.5mm (> 21/64”) and is thus somewhat thicker than most of today’s more common carbon hunting shafts, with diameters amounting to somewhat less than 8mm (5/16”).
The transition between the main body and the shank, which get screwed together with the thread into the insert, was turned not on 90°, but provided with a small radius by 0.5mm. This radius effectively provides two distinct advantages, an increased bending stability and allows for the self-centering in the insert of the arrow shaft.
A CNC-Laser cuts the blades from a tool steel board. The thickness of 1.80mm (.071”) and the grinding of the cutting edges are made in a CNC wet-grinding process to preserve the hardness of the steel.
No other manufacturer offers this blade strength!!
Prior to this process the blades are bead-blasted and vibratory ground.
The blades are precisely tempered to 55-57 HRC.
In order to ensure a homogenous molecular structure of the steel, the blades are then subzero quenched in a special cooling chamber.
The final process in achieving razor sharpness is accomplished by de-burring of the edges on a wheel containing elephant leather and a special polish paste.
ALL THIS FOR ONLY $24 IS A GOOD DEAL - AND THEY LOOK REAL COOL! A NEAR MISS WILL GIVE THE PREY A HEART ATTACK!