FreeM3 (5.5mm nut) wrench (used for Prusa MK3S bed nyloc mod)
Thingiverse
11 model
Free
FreeM3 (5,5mm Nut) wrench for ToroTube
Printables
FreeWasher for M3.5 or M4 woodscrew
Printables
FreeHammer Nut - Slot 5 M3 (+M3 nut version)
Thingiverse
FreeFlyingbear Ghost 4/4s/5 Belt Tensioner Y axis (GT2) M3
Thingiverse
FreeMetric self tap hole test - M2/M2.5/M3/M4 (1 to 5 mm)
Printables
FreeSelf Threading Test for M3.5 and M4 bolts
Printables
Free20T Idler Spacer – Ersatzhülse für 5 mm Idler mit M3 Schraube
Printables
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FreeSensor Mount Fit Test Coupon - M2 M2.5 M3 Clearance, Self-Tap, Heat-Set Insert Pilots, Qwiic + STEMMA QT Patterns, 2020 Slot Key
Cults3D
FreeM2, M2.5, M3, M4 heat insert hole testing tool
Printables
FreeMetric bolt sorter, M2, M2.5, M3, M4, M5, M6, hex nuts, MMU
Thingiverse