I have ordered heavier springs for my printer bed before and these springs had about 1mm difference in length.All these springs were within 0.4mm from longest to shortest with 8 of them being within 0.2mm.Honestly this surprised me considering the cheap price So yes, buy good nibs for your printer.
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
4 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
6 Review
Linear Clamping Support Bearing by Sydien
4 Review
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review