Hi, new to this forum, a little over a year in detecting.
I have made all of my own digging implements apart from one smallpick type which is cast iron and very brittle,(green one in pic), I'm now using a pick made from a plough sheer, very strong and durable and IMO the only tool required for detecting. It's unusual clove shape is ideal for parting grass (rather then tearing out) leaving it intact to reduce damage for regrowth when filling back holes.
The pick also allows me the option of not having to place my detector on the ground when retrieving items which is a big plus when detecting wet grass or beach sand.
Just thought I'd share,
regards, Veg.