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What is the composition of the HSS Twist Drill Bit Set?

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What is the composition of the HSS Twist Drill Bit Set?

The HSS Twist Drill Bit Set is suitable for drilling iron, steel and other metals such as brass, copper and aluminum alloys. When drilling metal, high-speed steel bits are more resistant to the heat generated by high-speed operations.

HSS Twist Drill Bit Set


  • What does the HSS Twist Drill Bit Set look like?

  • What is the composition of the HSS Twist Drill Bit Set?

  • What materials can the HSS Twist Drill Bit Set be used on?


What does the HSS Twist Drill Bit Set look like?

The helix angle of the HSS Twist Drill Bit Set mainly affects the size of the rake angle on the cutting edge and the chip evacuation performance. Usually, the helical groove can be processed by milling, grinding, hot rolling or hot extrusion. After grinding, a cut portion is formed.

The apex angle of the cutting part of the standard ordinary twist drill, the bevel angle of the chisel edge is the clearance angle. Due to structural reasons, the rake angle gradually decreases from the outer edge to the middle, and the chisel edge is negative. The rake angle can be left and right. extrusion. In order to improve the cutting performance of the twist drill, the cutting part can be ground into various shapes according to the properties of the material to be processed.


What is the composition of the HSS Twist Drill Bit Set?

The HSS Twist Drill Bit Set consists of a handle, neck and working part.

The shank of the HSS Twist Drill Bit Set is the clamping part of the drill bit, which is used to center and transmit power; the neck is used for the grinding wheel to retract when grinding the drill bit, and the specifications and trademarks of the drill bit are generally engraved on the neck; The working part of the twist drill plays the role of cutting and guiding. A twist drill is a tool that drills a circular hole in a workpiece through its rotational cutting relative to a fixed axis. Named because the chip flute is spiral-shaped and resembles a twist.

HSS Twist Drill Bit Set is the most commonly used hole machining tool. This type of drill has a long straight main cutting edge, the two main cutting edges are connected by a chisel edge, and the chip flute is helical (for chip evacuation).

A part of the helical groove constitutes the rake face, and the rake face and the apex angle determine the size of the rake angle, so the rake angle of the drill tip is not only closely related to the helix angle, but also affected by the edge inclination.


What materials can the HSS Twist Drill Bit Set be used on?

HSS Twist Drill Bit Set can drill metal, concrete, wood, ceramic tile, glass, etc. To drill on alloy steel, cast iron and other metals, you need to use a black twist drill made of high-speed steel, and the speed should not be too high during use, otherwise It is easy to burn the edge of the drill bit. This drill bit can also be used on wood, and the speed should not be too high, because the wood will also heat up.


SAAME Tools is the leading manufacturer sofa manufacturer specializing in HSS Twist Drill Bit Set. If you want to get more information, just go and connect them.

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