Drills for machining deeper holes

Drills for machining deeper holes


Sandvik Asia Limited Titex Division has introduced high performance drills for machining deeper holes with external coolant supply and drilling upto 5 xd without woodpecking. Existing conventional solid carbide drills without internal coolant supply guarantee efficient metal cutting in steel material only upto drilling depths of approx. 3xd. To go beyond this depth results in chip jamming accompanied by a considerable increase in the drilling torque with the consequence of frequent tool breakage and woodpecking. Alternatively the cutting edges are so severely damaged only short tool life is achieved. The new Alpha(r) 2 TFT overcomes all these problems thanks to the newly developed Tinal(r) Futura Top coating. This coating is based on the well proven Tinal(r) Futura multilayer coating combined with a new surface treatment process which smooths the coating to ensure excellent sliding properties exists between the chips and flutes of the drills thus enabling drilling of holes up to 5xd with external coolant and without resorting to peck cycles. These drills are available in diameter range of 3 mm to 20 mm in both standard cylindrical shank and whistle notch shank.

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