Those Manley's are chromed - you need to dimple the surface with a sharp punch before you can drill thru it. What I did with my Manley's is use a big snap swivel in the small hole near the return spring then attach my cord to that.
I found a pair of small Sargent side cutters (Rostra Tool out of CT makes them now) that were stainless steel with a leather sheath back in the mid 70s. They look very similar to the Manleys - best little cutters I have. I got the Manley's because there design was similar. No stopping rust with things in the ocean.
How come the plier companies don't use stellite, or talonite inserts?? They would be $, but they would never rust and require almost no sharpening for many seasons.
I have a pair of the medium sized 850 Donnmar/Checkpoints - not crazy about them - relatively light so they don't pull my shorts down.....lol.
The Fiskar kids sissors cut braid like butter - cost under $3.50 so you can buy a few pairs and keep them all over. Been using those for a few yrs now. Otherwise its a sharp knife.
