N- 1.5-13MM B16 Drill Chuck Adapter Milling Tool Kit Key Type Drill Chuck

1.5-13MM B16:1.5-13MM denotes that clamp the drill between 1.5 and 13mm, andB16 represents the hole behind the chuck is about 16MM taper. 1 Drill Chuck 1 Key. By using specialized anti-thrust bearing to convert key-applied torque into superior gripping.

eBay