Usage Tips:Features:Made of premium chromium molybdenum steel, high hardness and long service life. 3pcs extra long shank of different shape air hammer chisel, provided the needs of different jobs.Excellent quality air hammer chisel, it can used with a pneumatic tool.Ideal for masonry and concrete demolition, hard surface break up, chiseling and removing welding spots, rust, hardware cutting, drilling and so on.Universal size, 10cm round shank chisels are suitable for 150/190/250 air hammer.Specification:Material: Chromium molybdenum steelWeight: Approx.411g/ 14.5ozLength: Approx.170mm/ 6.7inShank Dia.: 10mm/0.4in Package List:3 * Air Hammer ChiselNote:Please allow slight error due to manual measurement. Thanks for your understanding..