What type of drill is used for Deep Holes

Drilling deep holes usually requires the use of specially designed drill bits to ensure an efficient drilling process and good finished product quality. Here are some common types of drill bits used to drill deep holes:

Gun Drill: This drill is commonly used for deep hole machining and has a long, thin tool structure that effectively removes chips and reduces friction heat.

BTA bits: BTA bits are another type of bit specifically designed for deep hole machining.

Single-lip deep hole drill bits: Typically used for precision deep hole machining, this drill has a single cutting edge and is suitable for deep hole machining applications that require high accuracy and surface quality.

Tungsten Carbide center bit: Center positioning for starting deep hole drilling, usually pre-machined hole positions before using other deep hole bits.

Choosing the right bit type depends on the specific machining requirements, including factors such as drilling diameter, depth, accuracy and surface quality. When selecting a drill bit, it is also necessary to consider factors such as workpiece material, machine tool equipment and processing conditions.