HUHAO 22Pcs ER20 Spring Collet Set, 1/4" High Precision Spring Chucks For CNC Milling Engraving Chuck Lathe Tool Holder Workholding Engraving — Open-Box, 5% Off

SOLID BUILD QUALITY: Made of premium 65 Mn spring steel, this ER20 collet delivers firm, secure bit holding. Uniform steel construction free of burrs & manufacturing flaws. Features heat‑resistant, anti‑corrosive & elastic properties for smooth, stable cutting to boost your machining workflow efficiency.

HIGH‑GRADE PRECISION: Boasts 0.007 mm run‑out accuracy for consistent machining results. Every surface is smoothly polished with zero visible defects. Works great for milling, drilling, tapping and other CNC tasks, helping you get clean, uniform cuts project after project.

FIRM & PERFECT FIT: Flexible bayonet‑style structure offers dependable elasticity for proper assembly. Install the collet inside the nut first before mounting onto your router or CNC machine. It locks bits snugly in place, prevents slipping and matches your equipment perfectly.

WIDE APPLICATION SCENARIOS: Versatile ER20 spring collet fits machining centers, CNC mills, engravers, high‑speed machines and ordinary milling equipment. Ideal for daily woodworking & metal machining jobs, serves as a practical replacement part for your existing tool setup.

THOUGHTFUL INDIVIDUAL PACKAGING: Each collet comes in separate labeled packaging to protect polished precision surfaces during transit. Easy to identify, fetch and store your collets. Good packaging guards against scratches, keeping your collet ready‑to‑use right out of the box.

HUHAO 22PCS ER20 Spring Collet Set for CNC Engraving Machine & Milling Lathe Tool Workholding Engraving Collets