Hi recently at work we had a use for the standard finger but had a bit of trouble sourcing one. so i have recently designed my own version. (non electrical) 
the black rivets would be replaced with nuts and bolts (work in progress) sizes are accurate to the standard.
My question is would anybody be interested in such a thing??
p.s. also i have discovered that some research has been done on the size of the Standard finger and it may slightly small so i can also make it bigger than usual if required.
Thank you i look forward to any replies..
Sean
