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

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CartoolshopSKU: Countersunk Bits

$29.99 $48.99

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- [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.


6pcs 1/4 inch Hexagon Shank 5 Flute Countersunk Bits:

Material High speed steel

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.


3pcs Step Drill Bits:

Material High carbon steel

4-12mm: 4mm, 6mm, 8mm, 10mm, 12mm

3-12mm: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm

4-20mm: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm

Use for For cut holes in a variety of materials including steel, brass, wood, plastic, etc.


Center Punch:

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


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