Straight shank twist drill is mainly composed of shank and working part. The cutting part of the working part has two main cutting edges and auxiliary cutting edges, which are responsible for all cutting work. The guiding part of the working part plays the role of guiding and grinding preparation, and the chip holding groove is made into a spiral shape to facilitate chip guiding.

It is made of high-speed steel and advanced technology, and the drill bit is fully ground.

The surface is smooth, the grinding precision is high, the knife edge is sharp and durable.

It is widely used for drilling stainless stell, iron, aluminum, copper, steel, plastic and wood, etc.