Due to the different requirements for the shape, specifications, accuracy, and processing methods of holes, there are many types of cutting tools for hole machining.

The center drill is used for the prefabrication and precise positioning of hole processing, guiding the Fried Dough Twists drill to process holes and reducing errors. If the center hole is not drilled, there will be deviation when drilling directly.

Fried Dough Twists drill is named for its spiral chip groove, which is similar to Fried Dough Twists. Fried Dough Twists drill is the most commonly used hole processing tool, which is used to process holes made of stainless steel, copper titanium alloy and other materials.

Deep hole drill is a type of drill specifically used for processing deep hole drills, which can be divided into external and internal discharge.

Difficulties in heat dissipation and drainage during deep hole drilling, as well as poor rigidity due to the slender drill pipe, can easily cause bending and vibration.Generally, pressure cooling systems are used to solve cooling and drainage problems.

Countersink drill, also known as spot facer, is a type of drill bit with targeted machining.

The traditional processing method is to first drill low holes with a normal sized drill bit, and then use a countersunk drill to drill shallow holes on top. Basically used to process the outer end face of countersunk or flattened holes.

The cutting part of the flat drill is shovel shaped, with a simple structure, suitable for drilling cork, hardwood, and many other wooden materials

The inclined cutting edge of the flat drill provides faster and cleaner cutting, and precise grinding points can improve accuracy, but the cutting and drainage performance is poor.

Set drill, also known as hollow drill bit and ring drill, as the name suggests, is a drill bit without a drill core,

Can insert an enlarged hole machining tool into the drilled inner hole.

When processing deep holes with an inner hole diameter greater than 150 millimeters, the nesting drilling method is often used.

The drill bit body is equipped with guide blocks to prevent vibration and deviation of the cutting hole during cutting. The guide blocks are made of wear-resistant materials such as hard alloy, rubber wood, or nylon