New 8xD drill launched

DORMER Pramet has launched a new solid carbide drill for applications up to 8xD, suitable for machining a wide variety of materials including steel, stainless steel, cast iron, copper and aluminium.

The R459 drill has been specifically developed to overcome problems typically associated with deep-hole drilling, building on the existing MP-X range which already consists of 3xD and 5xD solid carbide multi-material drills.  

“Including an 8xD drilling option to the current MP-X range enhances our customer offer and provides a reliable, versatile and cost-effective solution,” says Ricky Payling, Dormer Pramet’s application specialist for rotary tools.  

A key feature of the new drill is its continuously thinned web (CTW) geometry, which increases both flute volume and cross sectional strength.

“The combination of these elements ensures consistent forces throughout the drilling cycle, with little or no increase in power requirement as the drill penetrates deeper into the hole.  This, in turn, allows increased cutting speeds and greater performance reliability without compromising tool life,” adds Mr. Payling.

A special outer corner design provides added protection against wear and chipping, especially under extreme conditions such as cross drilling applications, while a specially designed 140º point angle makes for easier centring and reduces thrust requirements.

The R459 also incorporates a consistent edge preparation which protects against premature chipping and flaking. In addition, internal coolant holes allow for effective cooling of the cutting area and efficient swarf removal, minimising machine downtime.

The R459 is available in diameters from 3 mm to 16 mm, including 0.1 mm increments up to 10.0mm, and features a titanium aluminium nitride coating.