Mitsubishi Diamana Driver Shaft with Tip & Grip




The Diamana BF is the fourth generation of the classic Blue Profile. Like the third generation B, it is made using the proprietary high density Mitsubishi prepreg, Dialed and Mitsubishi MR70 fiber. The fiber is 20% stronger and 10% heavier than conventional prepreg. New is Boron Fiber is added to the tip section of the Diamana BF. One might assume that is what the BF indicates. What exactly can we see in the shaft measurements between the Third Generation B series and the BF.

bfvsbsignatureThe chart shows a selection of BF profile signatures in blue and Green and the equivalent B series in Yellow and Red. The difference is easily seen, the boron fiber tips are more stable. They do not lose stiffness close to the tip of the shaft. The balance point is high, but not as high as the third generation B. Hoop strength is the same and torque is very slightly higher. Not so high as to have an affect on performance. We feel the shock wave of impact hitting our hands. High density materials dampen that shock wave and deadens feel. As material density goes up, shaft companies are building in a small amount of added torque to restore feel.



DIALEAD Pitch Fiber

Diamana™ features our latest prepreg with DIALEAD™ Pitch Fiber for outstanding strength and energy transfer with a minimum of shaft deformation. While more costly and difficult to manufacture, the pitch fiber we are using is much stronger than traditional carbon fiber. All prepreg used in our shafts is developed and produced by Mitsubishi Chemical, or our trusted partners, giving us precise control over every step of the process.


Specifically designed and developed by Mitsubishi Chemical for high-performance applications, MR70 is an innovative new carbon fiber material that is 20% stronger and has 10% the modulus than conventional materials.




Boron fiber is equivalent in stiffness to high modulus carbon fiber with superior compression strength. As a result, Boron Fiber is often utilized for structure reinforcement most notably in military applications.



Ion Plating

The Ion Plating process creates a sophisticated, premium finish that cannot be achieved just by applying paint. The shaft is put into a vacuum chamber where chrome or silver alloy ions are fused to the shaft. It’s a more costly, time consuming process but it creates a stunning finish that we think is worth the extra time.


For a full review of this shaft visit Golf Shaft Reviews

Additional information

Weight 2 lbs
Dimensions 48 x 5 x 5 in
Weight & Flex

60-R, 60-S, 60-TX, 70-S, 70-TX, 80-TX