Speaking of the material of twist drill bit, I believe that the first thing you would think of is high-speed steel, white steel, cobalt containing high-speed steel, and the second one that you might think of is the whole cemented carbide. Yes, alloy and high-speed steel are the two most commonly used materials for twist drill bit. And in the wide range of high-speed steel, what are the most common ones?
Start with the high-end M35 material: strength and toughness. This kind of twist drill bit is suitable for various metal materials, such as stainless steel, iron, copper, aluminum alloy, cast iron, 45# steel, and wood, plastic and other soft materials. The quality is high-grade and the durability is greater than any of the previous materials. If you decide to use 6542 material, it is recommended to choose M35. The price is slightly higher than 6542, but higher cost performance.
Then, let’s introduce the 6542 material: this material is suitable for drilling various metals, such as stainless steel, iron, copper, aluminum alloy, and other low hardness metals and wood. Within the scope of application, the quality is medium and high, and the durability is very high.
The lower end 9341 material: this material is suitable for drilling ordinary metals such as iron, copper, aluminum alloy and other woods, and is suitable for drilling stainless steel sheet, and it is not recommended for thick steel sheet. Within the scope of application, the quality is medium.
The most common material is 4241 material: this material is suitable for drilling ordinary metals such as iron, copper, aluminum alloy and other low hardness metals and wood. It is not suitable for drilling hard metal such as stainless steel and carbon steel. Within the scope of application, the quality is fairly good and suitable for wholesale sales in hardware stores.
The above four materials are basically the most common used high-speed steel materials in twist drill bit from high-end to low end, but in addition to the above four, there are other two high end materials, M42 and powder high-speed steel.
Post time: Mar-04-2022