As far as a haft socket, I think its a holdover 'eurothing from DIY times.
(Not that tang fitting is difficult...) A guy could quicky carve and fit a haft of whatever was at hand.
I have couple old US made forks what are a dream to use. Ended up fitting them to hafts intended for garden rakes.
Not quite as sturdy an original haft, & rake haft is straight, so alters the original fork geometry, but, I dont bother bending stuff, It still works fine, As I am not throwing 20 pound sheafs either, they are plenty durable.
(Not that tang fitting is difficult...) A guy could quicky carve and fit a haft of whatever was at hand.
I have couple old US made forks what are a dream to use. Ended up fitting them to hafts intended for garden rakes.
Not quite as sturdy an original haft, & rake haft is straight, so alters the original fork geometry, but, I dont bother bending stuff, It still works fine, As I am not throwing 20 pound sheafs either, they are plenty durable.