Tough, Versatile and Wear Resistant Insert Drills

Walter USA has expanded its Valenite Xtra·tec insert drill line with additional products.

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Walter USA has expanded its Valenite Xtra·tec insert drill line with additional products. For users who needed small-diameter Xtra·tecinsert drills than were previously available, Walter now offers these drills with diameters as small as 13.5 mm (0.531"), suitable for depths up to 5×D. The tools in this range are equipped with size 1 (P484-1r) inserts.
At the other end of the spectrum, Walter has introduced drills in a cartridge format for the 60 to 120 mm (2.35” to 4.70") diameter range. The cartridge format allows easy replacement of wear parts. The standard version features a diameter of 80 mm (3.15") with 3 × D depth, while a 120-mm (4.70") diameter and 5 x D depth model is offered as a special.
Suitable for use with all steels, including stainless, as well as cast iron and other hard to machine materials, these new cartridge versions exhibit a high degree of process reliability thanks to the positive locking of the cartridges. Precision is enhanced because the hole diameter can be finely adjusted to + 0.6 mm (0.024”) on the outer cartridge. The center cartridge is equipped with a heavy-duty PVD coated Tiger·tec cutting tool material. Indexable inserts with various Tiger·tec grades can be selected for the outer cartridges, including wiper edges. Flexibility is boosted because the shank of the drill body has a modular NCT tool interface connection, enabling these models to be used on almost any machine spindle. Plus, the interface helps ensure maximum stability because of its short taper and support face.
The cartridge versions offers further advantages, such as drilling into solid material, inclined drilling, spot drilling on convex surfaces, and chain drilling. The inserts have four cutting edges, minimizing the costs per cutting edge, the company says.

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