Mini Drill Chuck Drill Collet Set 0.5-3.0mm fit for Micro Twist Drill Chuck Hobby Model Tool 0.5-3.0mm drill collet Material:Brass Drill Collet Size:0.5mm,1.0mm,1.5mm,2.5mm,3.0mm Excellent workmanship Package include:1x drill chuck, 5x drill collet, 1x DRILL CHUCK KEYS