Features: <br>1. ER straight-type chuck extension handle has long handle, suitable for deep hole processing. <br>2. This can reduce the use of tools, reduce costs and increase efficiency <br>3. Accuracy grinding can eliminate the outer diameter of the rod and the imbalance of the rod and improve the stability of the cutting. <br>4. Great workmanship, perfect replacement for the old or broken one. <br>5. It is a special shaft for motor spindle, easy to install <br> <br>Specification: <br>Condition: 100% Brand new <br>Whole Size: Approx. 8 x 18 x 45mm / 0.3 x 0.7 x 1.8in <br>Outer Diameter: Approx. 18mm / 0.7in <br>Size: Approx. 13 x 18mm / 0.5 x 0.7in <br> <br>Package List: <br>1 x Motor Shaft<br>1、ER straight-type chuck extension handle has long handle, suitable for deep hole processing. <br>2、This can reduce the use of tools, reduce costs and increase efficiency <br>3、Accuracy grinding can eliminate the outer diameter of the rod and the imbalance of the rod and improve the stability of the cutting. <br>4、Great workmanship, perfect replacement for the old or broken one. <br>5、It is a special shaft for motor spindle, easy to install