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Walter has expanded its range of standard solid carbide deep-hole drills with the Walter Titex X·treme D40 and the X·treme D50. Their 40xD and 50xD drilling depths have been significantly increased with this release. The XD technology (XD stands for extremely deep) enables holes to be drilled in one operation without pecking, in steel, cast iron or nonferrous metals.
Built with the latest production technology, the D40 and D50 drills also have an advanced TiALN-tip coating for a long tool life. Additional features include internal coolant channels for optimum heat dissipation and reliable chip evacuation, the company says. The latter is also supported by polished flutes. Four margins keep the drill exactly on its intended course. These features ensure a high level of process reliability, even with angled hole exits or cross holes. A high pressure coolant system is not required—in order to plunge without "coming up for air" a standard system with a coolant pressure of 580 psi (40 bar), such as is integrated in all machining centers, is sufficient.
Typical applications for these diameters are general metalworking and the hydraulics and automotive industries. Additional diameters, including intermediate sizes, are available as special versions.
Editor PickHitting the Coolant Sweet Spot
Toolholders with integrated cutting fluid delivery channels offer threaded, fixed-position nozzles that direct parallel streams of coolant to pre-defined positions at the top of the cutting tool.