Drilling, Tapping and Threading Holes

The DC170 solid carbide, internally cooled drill raises the bar in terms of performance, stability and reliability in the drilling of ISO-P and ISO-K materials. Its unique appearance, with an innovative land design that orients the margins radially and with a copper-color finish (DPP Coating), provides exceptional performance. The design of the lands is a key factor in this performance, thanks to their shallow cooling grooves at the drill end. The coolant flow encompasses the entire drill point, producing optimal cooling of both the drill and the workpiece interface, and inhibits chip packing. This is particularly important given the high temperatures generated during drilling.

The drill’s design features also adds more material behind the cutting edge which makes the drill sturdier than conventional designs, thus boosting tool life stability and process reliability. Additionally, this superior ability to control the coolant flow contributes to an excellent surface finish that helps users avoid reworking holes after drilling. DC170 drills feature eight visible cooling grooves, and these can be used as a scale for regrinding. The drills can be reconditioned up to three times, until only two cooling grooves are left remaining. Users who make full use of this now-visible regrinding potential can lower their tooling and overall production costs. Walter is initially offering the DC170 in sizes of 16xD and 20xD.

The Prototyp Supreme TC610 and TC611 solid carbide thread mills are high performance tools that deliver significant increases in thread quality, milling productivity and process reliability while boosting tool life. The TC610 with 1.5xD and the TC611 with 2xD both offer a new geometry that reduces vibration, produces superior surface finishes, as well as a through coolant design that optimizes chip removal and helps prevent fractures.

The real game changers, though, are Walter’s two new grades. The thread mills are offered in grades WB10RD and WJ30RC. WB10RD, with its exceptional wear resistance, has shown tool life improvements of 40 percent over other similar thread mills in lab tests. It features TiALN coating with a finishing layer of ZrN. The ZrN layer has a lower affinity for steel, providing lower temperatures in the cutting zone. The tough WJ30RC grade, with TiALN coating, delivers exceptional process reliability along with improved tool life. It can be run with or without coolant, broadening its areas of application. Importantly, users receive good thread quality from both grades.

Walter offers its counterboring and precision boring tools with connections for Walter Capto™ adaptors. The versatile and time saving Capto interface is being increasingly used on lathes, machining centers and multi-tasking machines to allow these machines to perform multiple processes with only a single tooling interface. Now, by offering connections to its Walter Capto adaptors in addition to its NCT and ScrewFit connections, Walter is bringing the benefits of Capto technology to its line of counterboring and precision boring tools.

The connections are available in five coupling sizes, allowing them to be used on both small and large machines. Walter boring tools comprise twin-insert models with medium and maxi versions for holes of 0.787 in to 25.17 in (20 mm to 640 mm). This stable and compact boring system has an internal coolant supply and is suitable for symmetrically or radially displaced roughing operations. Walter precision boring tools include solid carbide and single insert tools with mini, medium and maxi versions for holes of 0.787 in to 25.17 in (2 mm to 640 mm). Depending on the hole diameter, either boring-bar, cartridge or bridge constructions made of aluminum are used.

Walter PrecisionDIGITALare single-edged precision boring tools for the most precise holes with a diameter of 0.118 in to 4.882 in (3 mm to 124 mm). Their optoelectronic encoder makes it possible to read micron-precise digital results. For holes with a diameter up to 0.39 in (10 mm), solid carbide boring bars are available; for large diameters, bridges are available. The tool can be used up to a speed of 16,000 rpm.

Users of the Capto variants of this system will have a range of additional advantages: The interface is clamped using a conical polygon in accordance with ISO 26623, with a small cone angle. This creates a high clamping force and a good support face. The force is evenly distributed around the circumference of the polygon. The connection is completely backlash-free, is self-centering and does not need any special locking device. The Capto adaptor is also shorter and therefore more resistant to bending than other adaptors, and the tendency to vibrate is correspondingly lower. This is especially useful in precision boring with its requirement for higher quality.

Walter USA, LLC, N22 W23855 Ridgeview Parkway West, Waukesha, WI 53188, 800-945-5554, www.walter-tools.com/us.

MINI THREAD TURNING SOLUTIONS
Vardex | Vargus USA (Janesville, WI) has expanded its line of indexable thread turning solutions for applications with small bores with the Mini-3 IC5.0 mini thread turning line that provides solutions for the following minimum bore diameters:

• 0 – 5.95 mm
• NEW – Mini-3 IC5.0 – 7.8 mm
• IC5L – 7.2 mm
• 0 – 9.3 mm

The new Mini-3 IC 5.0 offers Standard and U Style thread turning inserts for minimum bore diameters from 7.8 mm (.31 in) with a pitch range of 0.5 mm to 2.0 mm. Offered in both VTX (TiAlN coated) and VBX (TiCN coated) grades, Mini-3 IC5.0 inserts are compatible with existing toolholders on the market today (insert size 08) and are available in the following threading profiles: Partial Profile 60 deg, Partial Profile 55 deg,  ISO Metric, American UN, Whitworth, NPT, NPTF, BSPT, American ACME, Stub ACME, Trapez and PG.

Mini-3 IC5.0 toolholders are available in Steel and Carbide shanks with a maximum tool overhang of 35 mm (1.37 in) and feature through tool coolant for improved cooling at the cutting corner. All of the latest mini thread turning products from Vardex are updated on VARGUS GENius™, VARGUS’ advanced thread turning software for tool selection and cutting data recommendations.

Vargus USA | VNE Corporation, 1149 Barberry Drive, PO Box 1698, Janesville, WI 53545, 608-756-4930, Fax: 608-741-7125, www.vargus.com.

SOLID CARBIDE DRILLS
Best Carbide Cutting Tools, Inc. (Gardena, CA) manufactures a complete line of solid carbide drills in fractional, wire, letter and metric sizes. Sizes range from 0.0135 in to 1.0 in. Our drills feature a precision split point or self-centering point starting at 0.0938 in (3/32 in) cutting diameter and larger. Best Carbide drills feature precise drill point geometries and a very smooth grinding finish providing significant tool life advantages for:

• Jobber Length Drills
• Slow Spiral / Stub Length Drills
• Straight Flute Drills
• NC Spotting Drills
• High Performance Drills
• Universal Drills
• Center Drills
• Spade Drills
• Reamers

Best Carbide Cutting Tools, Inc., 1454 W 135th Street, Gardena, CA 90249, 310-464-8050, www.bestcarbide.com.