3 Pneumatic Air Hammer Chisel Bit Tools Fit 150mm,190mm,250mm Gun Air Hammer US Feature: Material: alloy steel Type: hammer bits Color: as the picture shows Size: as the picture shows. Package included: 3x Hammer bits 1x Spring he Hammer for 150mm, 190mm, 250mm gun air hammer and gas shovel, handle diameter approx.10MM, universal type .Note: 1.Please allow 1-2cm errors due to manual measurement,thanks your understand. 2.The head of the Hammer bits include corve and flat head. 3.Due to the different Photography angles, some images may not display of the clear head shape, please understand, thank you! The longest hammer head is corve shape,others hammer is flat shape. - For tire repair , Wind pipe pressure seam edge and so on.