Emuge’s Solid Carbide Coolant-Fed Micro Drills

Originally titled 'Solid Carbide Coolant-Fed Micro Drills'

EF Micro Drills range from 0.0295” (0.75 mm) up to 0.1181” (3.0 mm) in diameter.

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Emuge Corp. has expanded its EF-Series of high penetration rate drills with a new line of sub-micro grain carbide coolant-fed micro drills. EF Micro Drills range from 0.0295” (0.75 mm) up to 0.1181” (3.0 mm) in diameter, all have the coolant-through design and are ideal for aerospace, medical and precision automotive applications designed for producing very small deep holes in steel, cast iron, stainless steels and nonferrous materials. All tools are 6 × D length and can accommodate most production applications.

The face geometry of the micro drills generates short chips in the drill operation, ensuring high drill hole accuracy, the company says. The micro face point and flute geometry, in addition to the coolant-fed design, enable excellent chip evacuation for the highest possible drilling speed, while reducing the need for peck cycles or clearing chips. The drills have a TiALN T99 multi-layer PVD coating designed for added heat and wear resistance. This significantly reduces built-up edges and edge chipping, substantially increasing tool life. In addition, the large central tool shank channel guarantees maximum coolant intake capacity, allowing optimal coolant transfer.

The internal coolant supply enables economically efficient, high performance machining down to the smallest drilling diameter of 0.75 mm. Drills also feature a double margin design for added stability and superior hole surface finish, the company says.