Dormer Pramet Drill geometry allows for continuous support

Editor: Barbara Schulz

Continuously Thinned Web (CTW) technology is unique to Dormer Pramet’s rotary drilling range and provides customers with a variety of benefits to support the life of the cutting tool, Ricky Payling, Dormer Pramet’s application specialist for rotary tools, explains.

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Dormer Pramet’s new R459 solid carbide drill 8xD.
Dormer Pramet’s new R459 solid carbide drill 8xD.
(Source: Dormer Pramet)

The traditional ‘Twist Drill’ has been around for more than 150 years and its overall design has changed very little during this time. This is recognition, if it was ever needed, of the innovative invention of American mechanic Stephen Morse from Massachusetts back in 1863. However, there will always remain the ambition to improve on perfection!

Constant requirement to push boundaries

Constant requirement to push boundaries

While the style and general use of a standard twist drill remains very close to its original roots, there is a constant requirement to push the boundaries and find new ways to enhance performance, extend tool life and reduce overall costs.

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Dormer Pramet’s philosophy has always been to provide customers with simple and reliable solutions to support and resolve their manufacturing challenges in an efficient and cost-effective manner. This ethos was a key element in their development of a distinctive feature for the working end of the traditional drill.

Continuously Thinned Web (CTW) technology is unique to Dormer Pramet’s rotary drilling range and provides customers with a variety of benefits to support the life of the cutting tool, without compromising performance. CTW geometry is a key feature of the newly released R459 multi-material drill for applications of up to 8xD, which is produced under the company’s Dormer product brand. Including CTW in the range means it is easier to regrind the drill and offers more consistent long-term performance. This will ensure the drill is restored to as close to its original properties as possible after regrinding, providing a cost-effective solution in a simplified manner.

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