Project X Catalyst Black .370 Parallel Tip Iron Shaft Set of 8

Catalyst is the next step in graphite iron design. Featuring our new Iso-6 material technology, Catalyst is Catalyst is the next step in graphite iron design. Featuring our new Iso-6 material technology, Catalyst is engineered to replicate steel alloy properties over 100% better than traditional graphite laminates. This allows for an extremely stable shaft that maximizes constancy and distance control while providing the benefits of a graphite body design.
Catalyst also features a reinforced tip section which, unlike traditional graphite, delivers torsional resistance comparable to that of steel—improving stability during turf interaction for better impact on less than perfect shots.
Features:
Features Iso-6 material technology, engineered to replicate steel alloy properties over 100% better than traditional graphite laminates.
Designed to be extremely consistent from shaft to shaft, providing stability and distance control.
Features a reinforced tip section which delivers torsional resistance comparable to steel – improving stability through impact, even on less than perfect strikes.
Available in Lite (Senior), R, R+, S and X flex options
 
Flex
40L   4.0 L/A  57g
50R   5.0 R     63g
55R+ 5.5 R+   68g
60S   6.0 S     68g
80S   6.0 S     85g
80X   6.5 X      85g