Carbon Spars
T700 Aerospace-grade
There are two main spar configurations, the original “X” spar for a natural biomechanical flex and the “O” spar for increased strength, dynamic tension, and shock absorption. All Hammer shafts are biomechanically advanced to give the athlete better feel, control and accuracy.

Ballistic Fabrics

Seamless biaxial weave for radial stress distribution
The continuous biaxial weave shell works like a layer of muscle fibers over the graphite-reinforced, vibration damping PowerCore. The components work together as a system producing scalable biomechanically-correct recoil flex. The shaft performance scales with athletic ability, improving speed, accuracy, and control. It’s like it’s part of your body.
CK: Carbon/Kevlar – providing great fast recoil for top level women’s play (the carbon component in the shell is not durable enough for hard checking Men’s play).
K: Kevlar – providing maximum recoil with 80% more impact resistance and 44% more strength then the Carbon/Kevlar.

Epoxy Composite Shell
Proprietary high-plastic, pressure-infused, oven-cured, molecular-hybrid epoxies…
Years of experimentation with industry leading polymer scientists has lead Hammer to significant breakthroughs in the durability of fiber-reinforced, composite matrix shells. Hammer’s proprietary high-temp, high-impact epoxy is 80% more impact resistant then the original Hammer Ultraflex high-impact epoxy shell, with no loss of system flex or feel. The new high-impact shell has been field tested with great results; however, all composite shafts are subject to bruising and surface cracks. We recommend taping over any rough spots.

Polyurethane Grip Coat
Aerospace-grade coating
Grip testing reveals players prefer a textured surface for secure grip and added control. When asked to specify what they want, they overwhelmingly prefer a rough but non-abrasive, non-sticky yet non-smooth (or slippery) surface. It needs some texture but still easy to slide. It sounded impossible, until an investigation in military surface coatings turned up a multi-layer polyurethane coating. It was originally designed, and is still the only coating used, as a high-impact UV protective coating for commercial aircraft. After several months of texture and durability tests with players, the final grip texture went into production. The Hammer Shafts are coated on the same line, with the same material used to coat the Hubble Telescope, Bradley Fighting Vehicle, Patriot Missile System, and many other undisclosed defense systems. It’s tough; however, it can nick or chip from normal play. We recommend taping over any rough spots.

ABS End Caps
Replaceable
The black ABS end caps are designed to be replaceable. If damaged or lost, contact Hammer Customer Service for an immediate replacement end cap. After drop testing end caps made of various advanced injection molding materials, flexible ABS was selected to protect the ends of the shaft.

Surface Damage
Surface cracks and bruising
Under normal playing conditions, hard checks can cause visible cracks and bruises in the composite shell. This is normal for all composite type shafts and does not affect shaft performance. Damage due to checks is not covered under warranty.

Embedded Mounting Tabs
Composite shafts have always struggled with secure head mounting. The screws rip out the end or radially weaken the composite shaft. Hammer has done several things to strengthen this area. First, Hammer has an imbedded aluminum mounting plate in the head mounting area (see photo). Second, Hammer uses a cross-linked, seamless biaxial-weave fiber-reinforced shell, which is inherently better at screw retention than commercially available unidirectional carbon-fiber commonly used in tube shafts. One should still use care not to over tighten, even with these features, over tightening can strip-out the screw hole, which is not covered under warranty.

Weight
Testing reveals performance
Players were surprised to learn, after testing various weight shafts, that the shaft weight they preferred (and thought was the lightest) was actually a mid-weight shaft (6.8oz-7.3oz). The mid-weight shafts had better bio-mechanical balance, providing better control and faster shooting. Balance engineering and CG design (center of gravity) is nothing new to other sports like baseball, golf and tennis. Advanced sports equipment design engineers understand High-Performance requires balance and natural flex; Hammer shafts are weight and flex-optimized for balance and control.

Made In USA
Due to Hammer’s aerospace/military grade materials, export restrictions prohibit shipping Hammer’s raw materials
out of the US.

With scalable world-class manufacturing in California and Detroit, Hammer is committed to competitive, high-quality manufacturing.

Stay tuned for more exciting product news and updates