8Pcs/Set ER11A 5mm Motor Unner Diameter Extension Rod +7x 1mm-7mm ER11 Milling Spring Chuck Shaft Holder For CNC Lathe Engraving

Name: ER11 Collets
Material: High Grade 45 Carbon Steel
Color: Silver
Total height: Approx. 18mm
Outer diameter(Max): Approx. 11.5mm
Gripping Range: 1MM to 7MM (1mm,2mm,3mm,4mm,5mm,6mm,7mm)
Fits metric shank size(s): For example,1mm Collets Fits 1mm metric shank,2mm Collets Fits 2mm metric shank

Features:
-Made of high grade specially formulated spring steel
-Hardened and precision ground
-Built in self-Release design and tools will never get stuck in holder
– Widely used, boring, milling, drilling, silk attack, sculpture, CNC, and other processing.
– Use with any standard ER collet chucks for coolant-thru tool applications.
– Each collet is well packed in separate protective container with label.
Name:ER11A 5mm Extension Rod
Height: 38 mm(when the lock nut)
Material: Special quality steel,high hardness
Shaft Hole: 5 mm (+0.2 mm) the need to install heating expansion
ER11A Nut: Outside hexagonal nut 19 mm maximum overall diamete

Package includes:
1 x ER11A 5mm Extension Rod
7 x ER11 Collets

Dear buyers, we appreciate your business, if you are satisfied with our service,
please leave us a positive feedback and rate the details of the transaction (Detailed Seller Ratings) with a
“PERFECT 5 STARS”.
If you have any problems, broken, quality problems, please don't worry, and don't leave bad feedback.
Please send us an email first, we will reply you as soon as possible, please allow us to respond within 12 hours.
We understand your mood, and will provide you with the best solution for your problem,
please give us the opportunity to solve the problem,
For any case,please feel free to come to us,we are always here.
look forward to and thank you for your trust.