High Productivity Deep Hole Drilling

The Cobalt High Speed Steel Dormer PFX Parabolic Flute

Experience the high productivity of the Dormer PFX premium cobalt high speed steel drills, available in screw machine, jobber, taper and extra-length designs.

Providing you options for your drilling applications, the PFX is ideal for most engineering materials operating in depths of 3xD (A920, A921), 6xD (A900, A901), 10xD (A940, A941) and 15xD (A976, A977, A978).

All drills feature a parabolic flute design for increased chip space and improved chip evacuation capabilities. This design allows greater hole depths to be achieved in some cases without the need for pecking. A thick web increases the structural strength of the drill for greater 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.

Available in bright finish across the full range, 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 greater depths.

Learn more about the comprehensive round and indexable tool offer from Dormer Pramet at www.dormerpramet.com.

About Dormer Pramet:

Dormer Pramet is a manufacturer of rotary and indexable drilling, milling, threading and turning tools for the general engineering sector. Market-leading brands include Precision Twist Drill (PTD), Union Butterfield, Master, Dormer and Pramet. With best-in-class training, support and logistics services, Dormer Pramet has become the reliable one-stop-shop for general purpose and multi-application cutting tools. Visit us at www.dormerpramet.com.

Miriam Metcalfe

Marketing Manager

Dormer Pramet

2511 Technology Drive

Suite 113/114

Elgin, IL  60124


Office: +1 847-783-5713

Mobile: +1 630-488-6091

Fax: +1 847-783-5760


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