Melin DR-.254-54489 .254in ZRN Coated Carbide Screw Machine Drill

The Melin DR-.254-54489 is a new solid carbide screw machine (stub) length drill with a 0.254 in cutting diameter and a 5/16 in straight shank, designed for high-precision hole-making in ferrous and non-ferrous materials. The flute is ground with a 135° split-point geometry (CRN: DP designation on label) that enables self-centering without a pilot hole and reduces thrust force at entry. It carries a ZRN (Zirconium Nitride) coating, which provides a gold-colored surface finish with excellent lubricity and wear resistance, making it particularly effective on abrasive and gummy materials such as stainless steel and aluminum. With a 1 in length of cut (LOC), a 2-1/2 in overall length (OAL), and 0 flutes designation indicating a standard 2-flute twist configuration, the stub length body provides rigidity for short-reach drilling applications in CNC machining centers, drill presses, and screw machines accepting 5/16 in shank toolholders.

Product Specifications