Compact High-quality brass (Lead & Cadmium free) insert designed for strong, professional threads in 3D-printed parts. The right and left handed knurling locks into PLA, PETG, ABS, ASA, and Nylon, giving excellent pull-out strength without cracking thin walls.

• Ultra short for tight spaces
• Strong grip, precise tolerances
• Easy heat-set installation
• CNCKitchen quality
  

Perfect for small enclosures, mounts, and compact mechanisms.
A reliable upgrade over generic inserts.

What’s in the Pack

• 50x  M4x4 CNCKitchen Inserts