10pcs Step Drill Bit Set 1/4 Inch Hex Shank 5 Flute Countersink with Automatic Center Punch

Features:
- [Package includes]: 3 pieces of step drills, 6 pieces of 5-Flute countersunk drills and 1 piece of center punch in the package; enough quantity and type are enough to meet your various needs. 
- [Step drill bit set]: made of high-speed steel and coated with titanium, various sizes of 4-12 mm, 3-12 mm, 4-20 mm. These step drills have the functions of heat resistance, corrosion resistance and rust prevention, and are practical and durable. 
- [Countersunk bit set]: made of carbon steel, the surface of the countersunk bit is plated with titanium to prevent rust; they are suitable for quick replacement, and are suitable for most power tools with 1/4-inch hexagonal shank, the cutting edge is hardened and polished to improve Sharpness, up to sharp and accurate countersinking. 
- [Automatic center punch]: The automatic center punch is very effective. It can make pits on the workpiece to prevent the screw and drill bit from shaking and drifting, so as to help you complete the work accurately and quickly, saving time and energy. 
- [Wide range of uses]: very suitable for drilling, reaming, chamfering, screw heads, etc.; suitable for chamfering various types of materials, such as wood, plywood, aluminum, iron, copper, fiberboard, plastic, PVC board, etc. 
  
Specifications:
6pcs 1/4 inch Hexagon Shank 5 Flute Countersunk Bits:
Material:High speed steel; 
Size:
6mm, 8mm, 9mm, 12mm, 18mm, 19mm; 
Shank Type:1/4 Inch Hex Shank; 
Color:Gold + Silver; 
Great for:
Sinking 90 degree holes into wood and soft metals countersunk screws and
fixings, suitable for diy, home and general building/engineering using; 
Material:Copper; 
Total length:130mm/5inch; 
Use for:Marking; 
  
Package Included:
1 Pc x  Bag; 
1 Pc x  Center punch; 
3 Pcs x  Step drills; 
6 Pcs x  Countersunk bits