My mouth is not the prayer book, but the pliers help my 63 year old hands. As pointed out else where, the 10" pliers open to the perfect width to compress the coil. The tips of the channel locks have no serrations and do not scar the washer or the cap. Some reccomend a leather piece of protection but I have found the pressure required to be so gentle, that such is not needed. Reassembly is, now, a pleasure.