Features SUPERIOR PERFORMANCE : Reinforced alloy cylinder provides large storage capacity and strong strength, Wear-resistant aluminium alloy body ensure long service life. EFFICIENT AND SAFE USE : The pneumatic chisel is exquisite workmanship and stable performance, it is a great tool for you. STRONG AND STURDY : The air hammer is made of high quality movement, durable to use. BASIC PARAMETERS : Impact Power:1.5J/min, Cylinder Diameter:25mm, Impact Frequency:60Hz/min, Air Consumption:7L/s maximum, Noise Level:103db maximum. Straight Scraper Knife Size: Approx. 140 * 13mm / 5.5 * 0.5in, Arc Scraper Knife Size: Approx. 140 * 13mm / 5.5 * 0.5in. WIDELY USED : handheld gas shovels demolition jack hammer is suit for casting sand cleaning and welding front opening groove, welding slag, flat solder scar, correction of stone, concrete and brick wall opening work. Specification: Condition: 100% Brand New Impact Power:1.5J/min Cylinder Diameter:25mm Impact Frequency:60Hz/min Air Consumption:7L/s maximum Noise Level:103db maximum. Weight: Approx. 1883g / 66.4oz Straight Scraper Knife Size: Approx. 140 * 13mm / 5.5 * 0.5in Arc Scraper Knife Size: Approx. 140 * 13mm / 5.5 * 0.5in   Package List: 1 * Pneumatic Shovel  1 * Straight Scraper Knife 1 * Arc Scraper Knife 1 * Inlet Port(1/4") Package List