VERY Thick BRANCHES, I BENT the TRIMMER BLADES, Trimming the OVERGROWN laurel Hedge

I had an order scheduled to trim a Tall hedge from Laurel, just before all the Stihl tools were stolen from me, so I borrowed the Trimmers from my acquaintance, but the tools were not very stable. As the Client informed me the Hedge had to be cut down by 1.8 m. Having taken with itself two chainsaws and a mini chainsaw the Hedge was rather higher than I thought, but what I did not expect is that the Branches were Thin for a Chainsaw but Thick for a Trimmer, after several hours of work all the Trimmer has not withstood the load and the blades bent.