Professional air hammer with variable speed trigger, built in power regulator and quick change chuck. Delivers 2200 blows per minute (bpm)/ stroke length 98mm with air hose size 3/8" ID, air inlet size 1/4" BSP, average air consumption 4.0cfm.Diesel injector extractor allows effective transmission of impact force and vibration to any adaptor with a 5/8" UNF thread.Includes 7 diesel injector adaptors: Siemens (2), Denso, High Pressure M12, Delphi, M16 Denso and Bosch Dual Connector.Plus valve seal removal tool for Denso, off-line injector adaptor for access and a Bosch injector dismantling tool.EU Registered Design. Made in Sheffield.