【Recommend】Comprehensive Set of Centering Flat-blade Drill Bits (5 Sizes)Centering Flat-blade Drill Bit 1.0MMCentering Flat-blade Drill Bit 1.5MMCentering Flat-blade Drill Bit 2.0MMCentering Flat-blade Drill Bit 2.5MMCentering Flat-blade Drill Bit 3.0MMHatch Hand Drill (Bits Not Included)