Insty Bit Quick Change Drilling Systems Drill Adapter Set With Bit & Allen Wrench (5 Piece)
- Made from high quality 45# steel, Accuracy: 0.015mm, Hardness: 50 HRC.
- Drill sleeves is used to change the taper of the connective arbors..
- High accuracy, inside and outside are very smooth. Easy to store and maintain, very useful..