ITEM NAME:0.3-6.0mm Mini Drill Chuck Taper Mounted Drill Chuck with one Key Drill Bits Description: Practical and durable Clamping Range: 0.3-6.0mm Size: 72mm×22mm/2.83inch×0.87inch Material: Alloy Color: Silver Package Includes: 1Piece Drill Bit Chuck Adapter SKU: DMO0012982152027289.1Piece Drill Bit Chuck Adapter. People always bought together with. Material: Alloy. SKU: DMO0012982152027289.