【WHAT YOU GET】The set contains 9 different sizes of hammer heads to meet diversified work requirements, the hammer head is finely processed, the surface is smooth, the size is accurate, to ensure that the striking force is uniform. 【MATERIAL】Made of 45# carbon steel forging, surface quenching treatment, high hardness, strong impact resistance, can easily cope with high-intensity operations and extend the service life. 【APPLICABLE】Standard interface design, compatible with mainstream pneumatic hammer / electric hammer models, easy to install, ready to use, save time and effort. 【WIDE APPLICATION】These air hammer bits pneumatic chisels tools are widely used for masonry and concrete demolition, light chipping and chiseling of tile, mortar, crushing hard rock, chiseling and removing welding spots, rust, hardware cutting, drilling and so on. 【CAUTION】The pneumatic groove head belongs to the air hammer attachments can not be used alone, need to cooperate with the air hammer or electric hammer used together. 【Air Hammer Pneumatic Chisels Tools】【Specification】 Material: Made of 45# carbon steel. 【WHAT YOU GET】The set contains 9 different sizes of hammer heads to meet diversified work requirements【Attention】 1. Please confirm the size before buying. 2.Please inspect before every use. Do not use if damaged.