A force that produces, or tends to produce, torsion or rotation. A relative measure of how much twist there is in a club. 

A heat-treating chamber which applies pressure and heat to a material during the curing process of graphite shafts. 

A resilient substance derived from a balata tree (or bully tree) used to make ball covers. 

A premium lightweight man-made fiber that is five times as strong and twice as stiff as steel. Boron has the highest compression strength of any composite material. It also has high modulus. 

The amount of the trailing edge of the club which is below the leading edge. 

The amount of curvature in the face of a wood club; some metalwood models also have bulge. 

Nickname of the hickory-shafted blade putter used by Bobby Jones. 

The point along the shaft where the degree of bending is greatest. It influences ball trajectory. 

This is quickly becoming a non-issue since almost the entire market now consist of investment cast, perimeter-weighted, cavity back designs. Forged irons have virtually disappeared from the market pla [..]

The amount of resilience in a ball, or how much it compresses at impact. The higher the compression, the greater the required force to fully compress the ball. It is a misconception that a ball with h [..]