Explain the difference between deep-hole drill and gun drill.

Deep-hole drills are divided into welding deep-hole drills and machining deep-hole drills. Deep-hole drill adopts internal chip removal, and the blade for welding deep-hole drill cannot be replaced. One-time use, the blades of machining deep-hole drills can be interchanged, and the blades of machining deep-hole drills can be used and replaced permanently.

Welding deep-hole drill and machining deep-hole drill both use oil feeder to supply cooling liquid and remove internal chips, which can drill deep holes in solid materials such as carbon steel and alloy steel, and the length-diameter ratio can reach 1: 100.

Gun body drilling machine

1 belongs to the special deep hole machining tool for external chip removal. The v-shaped angle is 120.

2. Special machine tool for gun drilling.

3. The cooling and chip removal mode is high-pressure oil cooling system.

4. There are common cemented carbide and coated cutter heads.