Bought one for a job 3 weeks ago and had a disaster. Had to test rings in plastic plugs to 6 kn and the hook adapter bent and almost snapped when I got to 5.In dead trouble so got Hilti in and had to buy the Hilti Hydrajaws kit to finish the job. The leach kit is not up to the job compared with the Hilti which has a proper rinbolt adaptor with a pin which takes the load ok. Site agent not happy that the certificate in leach kit had no expiry date and no traceable calibration. Got my money back from leach which was ok but wished they hadn't pushed me to buy it. Made me mad when leaches sent a letter saying there was nothing wrong with the kit they took back so don't waste your money and time on this poor copy kit.