| Air inlet thread | 1/4" NPT |
|---|---|
| Air pressure | 90psi |
| Brand | Unbranded |
| Chuck size | 3.0mm |
| Country of Origin | China |
| Free speed | 75000 rpm |
| Material | plastic + Alloy steel |
Check the listing for details. 90° Right Angle Pneumatic Air Grinding Pen Grinder Polishing Machine Tool. Condition: New, Made in China. Listed at 99.99 USD. Pneumatic Air Grinding Pen Elbow Right Angle 90 Degree Grinder Polishing Machine. 90 degree elbow air grinder. High centering rate, small size, high torque, pneumatic power.