Cobra Carbide’s Blackmamba series of coolant-fed drills features a flute design and cutting edge geometry that enables drilling to a depth of eight times the tool diameter. The drills are said to feature enhanced self-centering characteristics, optimized chip flow, high cutting rates and high productivity. They also eliminate the pecking cycle, reducing drilling time compared to conventional drilling, the compan says.

Blackmamba - 5XD CoolantFed TiAlN Coated  Features

140 Deg point angle and high performance geometry allows for high penetration rates.
Cobra High performance high penetration drills provide accurate hole sizing as well as near burnished holes
The Cobra drill comes standard with CH coating that provides unparalleled success in difficult to machine applications.
Manufactured from premium sub micron grain carbide.
Tolerance: Shank Dia h6 Cut Dia h7
Point Angle: 140 Deg