Also referred to as a “Tuck” in english, an Estoc is characterized as a straight, edge-less sword with a long cross-shaped (also called a cruciform)hilt for two handed use.

Armor was continually improving throughout the Middle Ages, the invention and subsequent widespread use of mail and plate armor weakened the effectiveness of most swords of the era. The Estoc was designed to circumvent those armors. Designed for thrusting attacks, the Estoc could split the rings of mail armor and penetrate the joints and crevices of plate armor.

The Estoc saw widespread use as a cavalry weapon, and for use in tournaments, where the edge-less nature of the blade helped prevent unintentional injuries.