How to remove airator from Glacier Bay kitchen faucet?

I can't remove airator from Kitchen faucet Glacier bay modern thick goose neck style. Flow is too low.Has 1/16 " circle inside & can't grab it to turn it clock wise to remove & clean..I have no instructions, other than the parts diagram doesn't include the shot of the inside ? Co. no longer can be googled..? nightmare! model # 67070-3108