After connecting the dent hammer to an air supply, the hammer creates a vacuum and sucks firmly to the body - dents can now easily be removed by working the sliding hammer - 3 replaceable strainers: Ø 60 mm, 120 mm, 160 mm - 1500 g sliding hammer weight - 1/4" air connection - air consumption: 0.7 cfm (20 l/min) - length: approx. 620 mm - working pressure: 90 to 150 psi (6.2 - 10.3 bar) - for best results even with the smallest adaptor an air pressure of at least 150 PSI is required !