During drilling the drill moves through bearings to stays supported as the drill advances. In gun drilling, the drill is supported at the beginning of the hole. Therefore, the depth limit is also set by the length of the drill and possibly by limits of axis movement on the machine. In standard drilling operations, the drill is fixed to the spindle at one point on the drill. The oil gets separated from the chips and recirculated through the process.Īnother unique aspect of gun drilling is the way the drill is supported.

The chips and oil are then collected in the base of the machine. The oil is used for lubrication and cooling initially but as it comes back out of the hole it carries chips back out to keep the hole clean. This is due to the high-pressure oil being directed right to the cutting surface. The unique design of our TechniDrill gun drilling machine provides the ability to keep the cutting area cool and remove chips effectively at high length to diameter ratios. 500 hole to be 48 inches deep (l:d of 96:1). We are pleased to offer expert application engineering to make this happen.This is a great system but imagine you needed a. However, gun drills of such small diameters require that the specific operating parameters are followed to ensure success. The strength afforded by the absence of a braze joint at the tip with tubular construction gun drills provides better penetration rates and tool life.

Medical instruments, automotive fuel systems, the glass industry, and many other applications can benefit by gundrilling very small holes with solid carbide flute drills. They are manufaturered from micrograin carbide and available in several PVD wear resistant coatings. Positive rake chip breakers and chip splitting geometries allow the use of feed rates 3 to 4 times greater than that of traditional gun drills. Quick availability due to stocked wear parts and most common boy sizes. Lengthens tool life due to full coating, edge treatment and indexable designs Shortens downtime resulting from quick exchange of worn partsĮasy to use, no sharpening, no length adjustment, easy inventory of wear parts. High effieciency by specifically developed cutting edge geometry for diea chip formation Versatility for use on lathe, machining centers and deep hole machines.

Gun drill parameters