Sandvik Coromant introduces new drills for drilling high quality heat resistant alloys

Sandvik Coromant has developed a new bit, CoroDrill Delta-C, which is used to cut high quality heat resistant alloys in aerospace applications, such as the production of gas turbine casings.

This new drill is designed for continuous and reliable hole production in demanding HRSA materials, which have stringent requirements on the cutting edge.

The new CoroDrill Delta-C geometry is optimized for maximum efficiency in repeated shallow hole drilling. This new cutting edge has a more consistent edge line for higher strength at the fillet, and the cutting forces at the fillet are very high in demanding applications. This distributes the cutting force evenly across the cutting edge – resulting in a more even wear without sudden changes.

Thanks to improved cutting, it results in a safer, longer tool life and high reliability from the first to the last hole when cutting expensive parts.

The deep flute design on the drill body optimizes the chip removal performance of the cutting zone and keeps the bit from jamming (which destroys the integrity of the part surface). This effect is continuous and precise drilling, so that the same tight tolerances can be repeated when machining one hole after another.

The standard CoroDrill Delta-C series has a tool diameter of 3 to 12 mm and a length of 3 to 5 times the diameter.

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