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New Upgraded DR Drills with Twisted Coolant Holes

ISCAR is introducing a new family of DR drills which use new square inserts with 4 cutting edges. The new drills were designed with twisted coolant holes that pass through the drill flutes. The new design leaves more room for the chips to flow out of the hole uninterrupted.


The coolant holes do not pass through the center core of the drill; therefore, the drill is stronger and more resistant to torsion.


Together with the new drills, three new insert sizes are being introduced. The new SOMX inserts in 05, 06 and 07 sizes are thicker than the former SOMT and XOMT 06 inserts.


The new drills are available in drilling depth to diameter ratio of 2xD, 3xD, 4XD and 5xD and in a diameter range of 12 to 60 mm (for more details please see catalogue). The new drills are available in whole metric sizes as well as half sizes in the above-mentioned range. For general applications and a wide range of materials, the well-known IC908 and NEW SUMO-TECH IC808 PVD grades should be used. For high speed machining of alloy steel and cast iron the well-known IC9080 and NEW SUMO-TECH IC8080 CVD grades should be used. It shows a substantial advantage over the current grades being used and should be used for the outer pocket on DR drills