Suitable for machining a variety of materials including steel, stainless steel, cast iron, copper and aluminium, the R459 has been specifically developed to overcome problems typically associated with deep-hole drilling. The drill also broadens Dormer's existing MP-X range, which already consists of 3xD and 5xD solid carbide multi-material drills. A key feature of the new drill is its Continuously Thinned Web (CTW) geometry which increases both flute volume and cross sectional strength. Ricky Payling, Dormer's Drilling Product Manager, explains: "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.
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