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Walter USA has expanded its line of Walter Titex X-treme high-performance solid carbide drills to include non-coolant-through versions, designed to increase performance and tool life. The drills are suited for a variety of industries, including automotive, energy, die and mold, and general metalworking applications.
Like the internally-cooled series, the non-coolant-through drills are available with diameters ranging from ⅛" to ¾" (3 to 25 mm) and can be used with virtually all common materials. They feature a four-margin design, which improves the stability of the drills relative to the workpiece, the company says. This enables the drills to maintain position at the point of entrance or exit, and also when machining inclined surfaces. Improved stability increases both process reliability and productivity, even in critical drilling situations, because the user is able to forgo prep operations such as milling a flat surface or drilling pilot holes. The four margins also ensure an improved hole-surface finish.
All the drills in the line feature an aluminum chromium nitride-based XPL coating. Other features include a 140-degree point angle and a cylindrical shank or whistle-notch shank according to DIN 6535. The h6 shank tolerance is suitable for shrink-fit chucks.