Seems like a good pen but not what I wanted. I wanted a spring around 15 TPI for use on a swaging machine, but the one I got (1 x 8 x 306) is only around 8 TPI. Well, back to the search!
π§ Neiko 50456A Compression Extension Assortment
3 Review
π SP 9618 Extension by Prime Line Products
π¨οΈ Optimize Printing Performance with Creality Printer Spring Compression Springs
Marketty Printer Compression Actually Perfectly
Electric Guitar Strings Ernie Ball 2221 Regular Slinky - (10-46)
5 Review
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
Linear Clamping Support Bearing by Sydien