Acrow ER1665 – ER16 Spring Collet (Ø6–5 mm Range, DIN6499) E-Z Coil Kit 1/4"-28 X 1.5D Unf (Standard) Helicoil Thread Repair and measurement tasks in both

and measurement tasks in both professional and industrial settings

Size is 108mm initial which will screw down to 84mm

The ISO Full Profile External Thread Turning Insert is designed for efficient and precise threading of metric threads in accordance with ISO standards

Maximum Size: 30 mm

with options for internal coolant supply and carbide shanks ensuring optimal clamping

Acrow ER1665 – ER16 Spring Collet (Ø6–5 mm Range, DIN6499) E-Z Coil Kit 1/4"-28 X 1.5D Unf (Standard) Helicoil Thread Repair and measurement tasks in bothAcrow ER1665 ER16 Spring Collet (65 mm Range, DIN6499) The Acrow ER1665 is a precision ER16 Spring Collet designed for secure clamping of tools within the 65 mm range. Manufactured to the DIN6499 standard, this collet offers excellent concentricity, stable clamping force, and reliable performance in small to medium diameter CNC machining applications. Built from premium hardened spring steel, it ensures durability, accuracy, and long service life