Drill penetrates with more precision
INCREASED PRECISION The R459 drill has been specifically developed to overcome problems typically associated with deep-hole drilling and creating underground mining infrastructure
Cutting tools developer Dormer Pramet in January launched a new solid carbide drill that increases drilling precision.
The drill was specifically developed to overcome problems associated with deep-hole drilling and creating underground mining infrastructure, says Dormer Pramet application specialist for rotary tools Ricky Payling.
“The R459 is suitable for machining a variety of materials, including steel, stainless steel, cast iron, copper and aluminium,” he adds.
The drill broadens the existing MP-X range that consists of solid carbide multimaterial drills, says Payling.
“A key feature of the new drill is its continuously thinned web geo- metry that increases the flute volume and cross-sectional strength,” he says, adding that the combination of these elements ensures consistent forces throughout the drilling cycle, with little or no increase in its power requirement as the drill penetrates deeper into the hole.
This, in turn, allows for increased cutting speeds and greater performance reliability without compromising tool life.
Meanwhile, a special outer corner design provides added protection against wear and chipping, especially when used under extreme conditions, such as in cross-drilling applications, while a specially designed 140º point angle makes for easier centring and reduces thrust requirements, he says.
The R459 further incorporates a consistent edge preparation that also protects against premature chipping and flaking. In addition, internal coolant holes allow for effective cooling of the cutting area and efficient swarf removal, which minimises machine downtime, he adds.
The R459 is available in diameters of 3 mm to 16 mm, including 0.1 mm increments up to 10 mm, and features a titanium aluminium nitride coating.
“Including this new drilling option in the current MP-X range enhances our offering to customers and provides a reliable, versatile and cost-effective solution,” concludes Payling.
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