7Pcs ER11 Spring Collet Set 1-7mm + ER11A 8mm Extension Rod Motor Shaft Holder

Specifications:
ER11 Collets:
Material: high grade 45 carbon steel
: silver
Total height: approx. 18mm
Outer diameter (): approx. 11.5mm
Gripping range: 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm

Feature:
Built in self-Release design and tools will never get stuck in holder.
Use with any standard ER collet chucks for coolant-thru tool applications.
Each collet is well packed in separate protective container with label.
Hardened and precision ground.
Performance stability, high accuracy.
Durable in use.
Widely used, boring, milling, drilling, silk attack, sculpture, , and processing.

ER11A 8mm Extension Rod:
Material: steel
Height: approx. 38mm (when the lock nut)
Shaft Hole: 8mm (+0.02 mm) the need to install heating expansion
ER11A Nut: Outside hexagonal nut 19 mm maximum overall diamete
High strength and hardness.
Durable in use.

Note:
Please allow 1-3mm errors due to manual measurement.
Item displayed in photos may be showing slightly different on your computer since monitors are not calibrated same.








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