Dormer PFX Steel Drills Feature Parabolic Flute

All drills feature a parabolic flute design for increased chip space and improved chip evacuation capabilities, the company says.

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Dormer PFX premium cobalt high speed steel drills are available in screw machine, jobber, taper and extra-length designs. Providing options for drilling applications, the PFX is especially useful for most engineering materials operating in depths of 3×D (A920, A921), 6×D (A900, A901), 10×D (A940, A941) and 15×D (A976, A977, A978).

All drills feature a parabolic flute design for increased chip space and improved chip evacuation capabilities, the company says. This design allows larger hole depths to be achieved in some cases without the need for pecking. A thick web increases the structural strength of the drill for better rigidity and minimizes the risk of drill breakage. In addition, the special point geometry promotes excellent centering, eliminating the requirement for a pilot hole, and reduces thrust force and power requirements, the company says.

Available in a bright finish, a Smooth-Flow coating option is available on screw machine, jobber and taper lengths. This AlCrN top coating reduces the coefficient of friction, increases wear resistance and, in combination with the parabolic flute, eliminates chip packing at longer depths, the company says.


 

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