This is a DIY Wool Hackle used for processing wool into combed top that can then be spun into string. It is meant to be used with wool combs like the ones that I designed previously.

It uses 3.5inch 16d nails just like the ones in the wool combs.

You can find the nails at this affiliate link.

https://www.amazon.com/HILLMAN-FASTENERS-461364-Common-Nail/dp/B00YUWLHJM?dchild=1&keywords=hillman+fasteners+bright+common+nails+16d&qid=1620749016&sr=8-2&linkCode=sl1&tag=thingiverse09-20&linkId=6647ea2e094c551798ddaa36ec1d4be7&language=en_US&ref_=as_li_ss_tl