Tungaloy, the leading manufacturer in the cutting tools industry, has developed new cartridges for its TungDrillBig series to meet the high demand of the market in machining large diameter holes. The new cartridges allow the customers to use TungSix-Drill (TDS) inserts with TungDrillBig drill bodies, whose diameter ranges from ø55 to ø80 mm. This combination expands the insert selection for TungDrillBig and provides economical machining solutions to the end users.

Each drill body has a set of inner and outer cartridges. In addition to the previously-available cartridges that use TungdrillTwisted (TDX) inserts, customers can now attach TungSix-Drill (TDS) inserts on TungDrillBig. The TDS cartridge uses economical and rigid 6-cornered WWMU type insert for TungSix-Drill; the TDX cartridge uses 4-cornered XPMT type inserts for TungdrillTwisted. The increase in the number of applicable inserts allows the customers to select between the two cartridges, depending on the application, machine rigidity, and material to be cut.

This product expansion strengthens the company’s position as the leading manufacturer of drilling products for the heavy industry, oil & gas, and general machining sectors. TungDrillBig series offer productivity benefits and economic advantages for the end users, who drill large diameters in steel, cast iron and a wide variety of materials. TungSix-Drill inserts can even machine superalloys because of their strong cutting edges.

To minimize tool inventory and associated costs for the customer, TungDrillBig bodies are available in only five variations. With the use of setting plates, the customer can adjust the diameter from ø55 to ø80 mm. Moreover, TungDrillBig has a long tool life because of its replaceable cartridges.

Furthermore, the drill bodies have internal coolant system that applies coolant directly to the cutting edge. This system improves chip evacuation, tool life, and surface finish, thereby supporting the customers’ need for precise holemaking.

The new cartridges for the TungDrillBig series satisfy the market demand for economic and productive drills that can machine large diameters. Tungaloy’s new development gives end users a competitive advantage in today’s rapidly changing industries.

Walter AG is extending its range of pilot drills and standard deep-hole drills In two product family areas, Tübingen-based Walter AG is making additions to its 2014 standard drilling range.

The Walter Titex X•treme Pilot 180, a solid carbide drill with internal cooling and a point angle of 180 degrees, will, in future, be available in diameters from 3 to 20 millimetres. Also new is the X•treme D50 (50 x diameter depth capability) as a standard tool in the Walter Titex team of deep-hole drills. Walter still offers the versions up to L to Dc 70 as special tools. Deep holes nearly always require a pilot or start hole.

The X•treme Pilot 180 is the right drill for pilot drilling and spot-facing inclined or convex surfaces. Operations such as counterboring drilled holes to recess bolt heads or protect threads are other possible applications. Walter Titex XD drills (XD stands for “extremely deep”) represent the latest solid carbide deep hole drilling technology with through coolant. XD drills are available as standard in a diameter range from 2 to 16 millimetres, L to D ratios of 8, 12, 16, 20, 25, 30, 40; the most recent addition to the standard range is the X•treme D50, which can be used with emulsion or oil, a typical application being lubrication galleries in engine blocks in the automotive industry, for example. The X•treme D50 is offered as a standard tool in dimensions from 4.5 to 9 mm. The particular feature of the range is that users do not require a high-pressure coolant system or a deep-drilling machine – with low coolant pressures from 20 bar being quite sufficient, such as are available in many machining centres.