Professional choice. the blade has great elasticity and durability. Hardened and tempered, hardened, hardness is good, the blade will not break. Made of heat treated high carbon steel with the necessary hardness and durability. Suitable for inflatable hand- hammers, scrapers or scrapers. Used for the removal of masonry and concrete, minor shreds and serrations, mortars, glass compounds and other masonry . it is very sturdy and has a long service life. 9 different shapes of hammer tangents different job requirements. A superior air hammer wheel can be used with pneumatic . Used for masonry and concrete removal, hard surface cracking and abrasion. colour:Photo Color Material:40CR steel Contents: 1* set Pneumatic hammer(9 pcs) Only the above content, other are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.