ER Collet Nuts – Precision CNC Tool Holding

Er Nut

The ER collet nut is a precision‑engineered fastening component used to secure ER collets within collet chucks on CNC machines. Made from hardened alloy steel, it ensures strong clamping force, accurate tool positioning, and reliable performance at high spindle speeds.

Applications

CNC machining centers
Milling, drilling, tapping operations
Precision mold and die manufacturing
Woodworking and engraving machines

Secure tool clamping → improved machining accuracy.
Long service life → reduced replacement costs.
Easy installation and removal → efficient tool changes.
Compatible with all standard ER collet chucks.

Material: High‑strength alloy steel, hardened and ground for durability.
Design: Threaded internal bore with precision taper to seat ER collets securely.
Clamping Force: Provides uniform pressure to minimize tool runout.
Surface Finish: Black oxide or nickel plating for corrosion resistance.
Compatibility: Available for ER8 to ER50 collet sizes.
Safety: Self‑release design prevents collet/tool sticking after machining.
Balance: Precision ground for high‑speed rotation, reducing vibration.

ER11	Standard	M14 × 1.0	~19 mm	Engraving, PCB routers
ER16	Standard	M22 × 1.5	~28 mm	Light milling, drilling
ER20	Standard	M25 × 1.5	~34 mm	CNC routers, woodworking
ER32	Standard	M40 × 1.5	~50 mm	Industrial machining
ER40	Standard	M50 × 1.5	~63 mm	Heavy‑duty CNC milling

High Precision Er Nut

Er Nut

Applications

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