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Item Type: Laser Flashlight
Model Number: HXKJ-COLLET-ER11
Unit Type: piece
Package Size: 15cm x 10cm x 5cm (5.91in x 3.94in x 1.97in)
Package Weight: 0.15kg (0.33lb.)

Specifications

New Collet Chucks Precision ER11 Extension Rod Toolholder CNC Mill
 
Specification 
Diameter:16mm,overall length 35mm,including the length of the threaded portion.
Shaft hole diamter:8mm,tolerance -0.02mm (actual 7.98mm)It requires heating when installating.
Material: special quality steel,high hardness.
Chuck hole: ER11 standard taper holes. Correct installation can be achieved using precision.Ultimately reflected in the axial direction of the motor shaft and tool runout): about 0.03mm.
Note: For the accuracy of concentricity of the sleeve itself, to reach the inner 0.01-0.015mm.But there're some errors between the key part of ER chuck,the tool, and the motor shaft more or less.Therefore,the effect actually can be used in about 0.03mm.
Feature 
The ER extension rod is created specifically for the United States (shaft diameter 8MM) motor.The inner and outer diameter of this extend rod has been grinded all,the convenience of our DIY friends can easily spend ER precision chucks.

Package 
1 x New Collet Chucks Precision ER11 Extension Rod Toolholder CNC Mill