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Carbide Micro-Drills with Through Coolant Capability

Walter DB133 supreme carbide micro-drill

Walter-Titex offers DB133 solid carbide micro-drills with internal and external coolant capabilities. "These drills are the key to establishing precise, reliable working processes and achieving significantly longer tool life in steel, cast iron and nonferrous workpieces (ISO P, K and N workpiece groups)," said a company spokesperson.

The use of grades WJ30EL and WJ30ER, developed by Walter specifically for micro-drills, provides enhanced wear resistance. "In addition, the cutting edge geometry increases process reliability, and optimized dimensions allow for maximum stability, even with the smallest drills," said a company spokesperson. "The extremely uniform finish on the drill cutting edges and tight tolerances ensure that the surface finish of the drilled holes is exceptional. With the special flute geometry, the chips (swarf) are evacuated effectively. This means that hole depths of up to 12 x Dc can be easily achieved." Oil or emulsion can both be used as a coolant with these drills. For deeper holes beyond 8 x Dc, Walter has also introduced a corresponding line of pilot micro-drills, the DB131.

The DB133 drills, with their 140° point geometry, are available in diameter range from 1/32" to 5/64" and 0.5 mm to 2.95 mm. Length to diameter ratios (L/D) of 5, 8 and 12 x Dc are standard. This drill design suitable for general manufacturing, mold and die making, medical, energy and automotive industries and any other areas where small diameter, deep holes are required.

For more information contact:

Walter USA LLC

N22 W23977 RidgeView Pkwy West

Suite 100

Waukesha, WI 53188


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