Professional quality heavy duty construction. Drop forged and hardened blades with armour chrome plating for strength and durability. Wavy edge blade with cutting notch holds while cutting. Hollow ground blades - self sharpening/low friction action. Fully adjustable blade tension with convenient dial setting mechanism. Lacquered hardwood handles permanently secured to the blades with barbed tangs and heavy duty ferrules. Rubber buffers - non jarring.