Carbide-Tip Drill allows tip change on machine.

Press Release Summary:

KenTip features cam-actuated clamping mechanism that requires ¼ turn to lock/unlock tip into body. HP geometry provides higher positive rake angle, and edge preparation provides 30% to 50% higher tool life and higher penetration rates on Z-axis thrust limited machines. Heavy hone-edge treatment protects cutting edges. TiAIN coating delivers resistance to heat and abrasion. Drill is available in inch sizes from 5/16-5/8 in., and metric sizes from 8-16 mm.

Original Press Release:

Kennametal Introduces KenTip Drills With Tips Changeable on the Machine

(Latrobe, Pennsylvania, USA) -- Kennametal has announced the new KenTip modular carbide tip drilling line with tips that can be changed without removing them from the machine. The new KenTip drills are available in inch sizes from 5/16 inch to 5/8 inch and metric sizes from 8 mm to 16 mm. They use Kennametal's HP geometry, which offers a higher positive rake angle and special edge preparation that provides 30% to 50% higher tool life than existing carbide drills, and higher penetration rates on Z-axis thrust limited machines. "The new KenTip line offers up to 10 times higher productivity than conventional high-speed steel drills," said Chet Parzick, Senior Product Manager for Kennametal. "The elimination of hardware reduces setup time by eliminating the need to remove the drill from the machine to change the tip and also eliminates the need to stock parts for the tool."

The key to the higher productivity of the new KenTip drills is the HP geometry, which provides an exceptionally high positive rake angle. The wide chip flutes and SE drill point geometry ensure high penetration rates. The geometry also comes with a heavy hone edge treatment that protects the cutting edge. It is offered in grade KC7315, which has an advanced TiAlN coating that delivers superior resistance to heat and abrasion, making it possible to run at higher than normal spindle speeds. The grade's tough substrate helps prevent chipping, a common failure mode in drilling. It also reduces cutting forces to the extent that users of high-speed steel drills who have avoided converting to carbide because of thrust issues, or users of other carbide drills that are taxing Z-thrust limits, can now make major productivity gains. The total system delivers the ultimate in machining performance on low and medium carbon steels, alloy steels and tool steels.

The new KenTip drills feature a patented cam-actuated clamping mechanism that requires only one-quarter turn to lock or unlock the tip into the body. An insertion and removal tool is supplied with each drill. Drill bodies are available in lengths of 3 times and 5 times the hole diameter. The initial offering consists of round shank bodies that are suitable for high performance holding devices such as shrink fit adapters, hydraulic chucks, power grip chucks and collet chucks. The modularity of the new line means that, for example, a ½ inch tip can go into a 3X or a 5X body. One drill body can also accept tips in multiple grades. Although the initial offering includes only one grade for steels, others will be available in the future. Kennametal will also soon be offering additional geometries for other materials and additional sizes in both lengths and diameters.

For more information about this and other Kennametal products, call 800-446-7738 or visit

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