Abstract: A cutting blade made of surgical stainless steel with a very small angled back hone, a small grind angle, a small angled front hone, and a reduced size included angle, which has an increased hardness that results in a longer lasting narrow edge geometry blade that has a reasonable cost with increased durability and accuracy, providing greater cutting precision, productivity and net yields, while reducing the compression of the blade and processing downtime.

Abstract: A combination cylinder and pistons wherein the pistons are provided with piston rods coaxially located in the cylinder so that fluid under pressure may be introduced into the head of one of the pistons at one end of the cylinder and transmitted through a tubular opening coaxial with said piston rod to the space above the head of the next adjoining piston and if desired, through similar openings in a plurality of additional pistons, until the last piston rod which is not provided with such an opening therethrough and which is connected to a tool.

Abstract: A wood-type golf club head is provided with vertical grooves adjacent at each end of the ball hitting surface in order to enhance the desired gear effect when balls are hit on the toe and heel of the club.