HSS Countersink Drill Bit Set - 6pcs

The **HSS countersink drill bit set** is designed for efficient chamfering, deburring and tapered hole finishing across a range of suitable materials. With three cutting flutes and a 90° angle, these high-speed steel drill bits help create clean, smooth chamfers while supporting efficient material removal during drilling and finishing work.

Made from HSS 4241 high-speed steel, this **HSS countersink drill bit set** provides a practical solution for workshop, DIY and general machining applications. The tapered design allows the cutting process to be completed efficiently, while the three-flute configuration helps clear processed debris and reduce clogging during suitable operations.

These countersink drill bits are suitable for workpieces with hardness below 25HRC, including carbon steel, thin iron plates, insulation boards, PVC boards and wood boards. They are intended for small cutting-volume machining and can be useful when preparing holes for a cleaner, more finished appearance.

The cutting edges can also be ground for maintenance, providing a convenient way to restore the tool when required. Automatic through-hole chamfering allows suitable holes to be chamfered quickly, helping improve workflow and reduce the time required for finishing operations.

### Key Features

* 6-piece countersink and deburring drill bit set

* Made from HSS 4241 high-speed steel

* 3-flute cutting design

* 90° cutting angle

* Designed for chamfering and deburring

* Efficient debris removal during operation

* Suitable for small cutting-volume machining

* Grindable cutting edges for maintenance

* Suitable for materials below 25HRC

* Supplied in a convenient tin

### Suitable Materials

The **HSS countersink drill bit set** can be used for suitable workpieces such as carbon steel, thin iron plates, insulation boards, PVC boards and wood boards.

### Specifications

* **Flute:** 3

* **Angle:** 90°

* **Material:** High Speed Steel 4241

* **Quantity:** 6 pieces

### Package Includes

* 6 × Tapered Countersink Drill Bits

* 1 × Storage Tin

Choose this **HSS countersink drill bit set** for practical chamfering, deburring and tapered hole-finishing applications in suitable workshop and DIY projects.