1.0.14,0.2,0.35,0.5,0.7,1.0,2.0J force 2.IEC60068-2-75,IEC 884,UL1244; 3.High precision; 4.Easy operation; ... alloy.2.Types: Spring OperatedImapct HammerEnergyTolerance Mistake0.14J±0.014J0.20J±0.02J0.35J±0.03J0.50J±0.04J0.70J±0.05J1.00J±0.05J2.00J±0.10J ... Auto-106BUniversal spring hammer0.14, 0.20,0.35,0.50,0.70 and 1.0J Materialstainless steel ReferenceIEC60068-2-75 IEC884 and UL12443..Technical ...