I struggle to grip 100kg deadlifts for anything more than a rep or two, as simply do not have the forearm strength.
By your suggestion, I should be dropping the weight to where I can lift unsupported for a full set of reps, which would mean 80kg. At that weight, I would be training in a different manner, and not achieving my objectives, all for the sake of forearm muscles that I don't really need nor want.
Have you tried a staggered grip, or are you using a standard claw grip?
Have you tried a staggered grip, or are you using a standard claw grip?