Deep Hole Drilling Machines
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Deep hole drilling machines are used for drilling a bore hole in ground, wall or work pieces made of metal. A deep hole is determined by its depth-to-diameter ratio (D:d), and the holes usually are greater than 10:1. Single-lip deep hole drills are commonly used on machining applications for drilling bore holes with smaller depths. Other types are gun drilling and BTA (boring trepanning association) process.
Deep hole drilling machines require cooling lubricant at the cutting edges which come in contact with the workpiece The lubricant ensures good cooling and smooth functioning. Also, this help in constant removal of chips from drilling area which further helps to improve the quality of bore hole, leading to high productivity with low stress.
