What's the difference between a gun drill and a deep hole drill?

1. Gun drill: it belongs to the special deep hole machining tool for external chip removal. The v-shaped angle is 120. Use special machine tools for gun drilling. The cooling and chip removal mode is high-pressure oil cooling system. There are two kinds of gun drills: ordinary cemented carbide and coated bit.

2. Deep hole drill: it belongs to the special deep hole processing tool for external chip removal. The v-shaped angle is 160. Deep-hole drills are specially designed for this system. The cooling and chip removal mode is pulse high pressure fog cooling. There are two kinds of common cemented carbide and coated cutter heads.