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Cobra Carbide offers its Blackmamba series of coolant-fed drills designed to eject chips and remove them from the cutting zone while drilling deep holes, preventing damage to the tool and workpiece. The drills’ flute design and cutting edge geometry is capable of drilling holes to a depth of eight times the tool diameter. According to the company, the tool offers self-centering characteristics, optimized chip flow, high cutting rates and increased productivity. The pecking cycle also is eliminated, which is said to reduce drilling time by 15 to 20 percent over conventional drilling.
Editor PickCan Additive Manufacturing Increase Milling Feed Rates?
With PCD tooling, yes it can. The diamond cutting edges demand a large number flutes to realize their full effectiveness. Traditional methods for making cutter bodies limit the number of flutes, but 3D printing is delivering tools with higher flute density and other enhancements as well.