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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 PickHitting the Coolant Sweet Spot
Toolholders with integrated cutting fluid delivery channels offer threaded, fixed-position nozzles that direct parallel streams of coolant to pre-defined positions at the top of the cutting tool.