1.Material: High speed steel 4241, middle chamfer drill is No. 45 steel

2.Drill Size: 3mm, 4mm, 5mm, 6mm, 7mm,8mm,10mm

3.Suitable: steel, aluminum & other metals, wood and plastic
4.Chamfering device: five blade, which can discharge the sawdust more quickly, drill out smooth and smooth sinks, and insert the screw cap into the surface of the workpiece.
5.Multifunctional- Extend all kinds of screwdriver bits, screwdriver head conversion uses.

6.Three point drill design: the cutting flutes of the countersink drill bit is made of CNC gear grinding, the three-pointed bit is better in centering and no skid .So the drilling is accurate and fast with high efficiency.

7.Chip removal quivkly :the wide chip slot and the five-flutes chamfering make the operation process faster to remove the sawdust, and the chamfering is more smooth and unbroken.8.Round handle design: handle is smooth without friction with the machine, and it’s suitable for Power Bench or Hand drill driver in the most common size.
9.Removable Adjustable: use a wrench to remove or adjust woodworking and five-bevel chamfering.