Feature: 1. Made of aluminum alloy and ABS material, the handle and chuck are exquisite, durable, corrosion resistant and rust proof. 2. Elastic chuck handle, ergonomic pen design, metal surface makes engraving, sanding and polishing easy and comfortable. 3. Reduce vibration to prevent fatigue and provide better grip for greater maneuverability and higher speed. 4. Easy to install, just clamp the connector handle on the electric grinder, you can also use it to turn your rotating tool into a grinder. 5. The rotary tool has a wide range of uses, can be used with polishing kits, drill bits, etc, to provide you with more functions. Specification: Item Type: Flexible Shaft Handle Material: Aluminum Alloy + ABS Color: Golden Handle Bearing: NSK-NMB Bearing Purpose: Electric Grinder Electric Drill Flexible Shaft Handle . Package List: 1 x Electric Grinder Electric Drill Flexible Shaft Handle1 x Black Key Tool Note: Manual measurement, please allow a small amount of error.