Over the last 35 years, the Supermini universal boring system from Horn has undergone numerous development stages and has solved problems in a variety of turning applications.

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Another milestone has just been announced for the Supermini type 105, namely a lower cost version of the solid carbide inserts with chip breaking geometry included at the sintering stage, rather than laser cutting or grinding them afterwards. Indeed, the price of the new Supermini is similar to that of the standard insert without geometry.As with these previous machined chip breakers, the new sintered geometry avoids the drawback of long, stringy swarf coiling around the tool or workpiece and potentially causing damage to both. It assists internal machining of small diameter holes, whether boring, profile turning, internal grooving, threading, chamfering, face grooving or slot broaching.Horn developed teardrop shaped carbide blanks for the tool, enabling large, precise contact surfaces in the tool holder and resulting in greater rigidity of the overall system. Furthermore, the teardrop profile prevents the insert from twisting, which leads to consistent, precise positioning of the centre height of the tool. When using long tool overhangs, it reduces deflection and minimises vibration during turning. Horn offers the inserts as standard in three lengths (15mm, 20mm and 25mm) and in carbide grades TH35 and IG35. The tool is suitable for use from a bore diameter of 6 mm. The cutting edge geometry extends far into the 0.2mm corner radius of the insert, ensuring good chip control even with small infeed settings. Different material groups may be processed and the geometry is suitable for internal, face, copy and back turning.The new insert is compatible with numerous 105 tool holders, including round shank, square shank, interface and adjustable types. There are four different solutions for clamping the inserts: a classic ball pressure screw, a face clamping element and a lifting element, while for confined spaces, a compact system with clamping via a union nut is available.Depending on the application and the diameter to be machined, Horn offers Supermini inserts in three sizes (105, 109 and 110) and different blank types. All allow internal coolant supply directly to the cutting zone. The tool portfolio includes around 2,500 different standard variants of the Supermini. In addition, Horn's applications department solves users' specific machining problems with customised solutions.

(LATROBE, PA) -- Three new geometries across two new Beyond(TM) carbide grades augment Kennametal's range of face-grooving inserts and tooling for small-diameter internal and external applications. Available as precision-ground and molded styles in both flat-edge and full-radius face-grooving geometries, A4-S inserts are the latest additions to Kennametal's new Beyond(TM) line of milling and turning tools. They are aimed at face grooving on parts from 16-58 mm (0.630-2.284 inches) in diameter and groove depths from 12-19 mm (0.47-0.75 inches). Users can choose from three chipbreaker geometries aimed at providing longer tool life with more consistent tool wear, faster material-removal rates, and improved chip control across a range of face grooving applications and work materials. GMN inserts provide a stable cutting edge, while GMP and GUP chipbreakers feature positive geometry for reduced cutting forces. Inserts are coupled with a comprehensive portfolio of modular and systems toolholders including boring bars for maximum versatility. KM or Capto tooling options provide stable, reliable toolholding in machining aerospace components, pump and engine parts, and general industrial components, among many others. For more information on new A4-S small-diameter face grooving and turning inserts, visit www.kennametal.com. Kennametal Inc. (NYSE: KMT) is a leading global supplier of tooling, engineered components and advanced materials consumed in production processes. The company improves customers' competitiveness by providing superior economic returns through the delivery of application knowledge and advanced technology to master the toughest of materials application demands. Companies producing everything from airframes to mining equipment, from medical implants to oil wells and from turbochargers to motorcycle parts recognize Kennametal for extraordinary contributions to their value chains. Kennametal Inc., Latrobe, PA; 800.446.7738. New A4-S inserts from Kennametal can be coupled with boring bars for small-diameter face-grooving tasks.

Available as precision-ground and molded styles in both flat-edge and full-radius face-grooving materials, Beyond(TM) A4-S Inserts provide face grooving on parts from 0.630-2.284 in. in diameter with groove depths from 0.47-0.75 in. Three chipbreaker geometries include GMN inserts, which provide stable cutting edge, plus GMP and GUP inserts, which feature positive geometry for minimized cutting forces. Inserts are coupled with modular and systems toolholders including boring bars.

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