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Crystal Diamond Coated Drills

Suitable for cutting holes in CFRPCFRP is a composite formed by curing carbon fiber impregnated with resin.

It is highly resistant to wear, heat, and oxidation, and also boasts excellent thermal elasticity. It has strength and stiffness comparable to iron, steel, and other metals, yet is far lighter, a characteristic that makes it a popular choice of material for building aircraft.

CFRP, however, has the following drawbacks:

  • High hardness of carbon fiber
  • Easily delaminates due to low resin strength
  • Low cutting-heat resistance of resin at 200?

Crystal diamond coated drills feature a unique cutting edge design that delivers excellent cutting performance and diamond coating with enhanced crystallinity. The reduced cutting resistance and increased resistance to wear will ensure a longer tool life for use with difficult-to-machine materials.

Features

A cutting edge design that minimizes cutting resistance

Sharp cutting edge that ensures a clean cut through carbon fiber
Cutting resistance is minimized to help prevent CFRP delamination and exit burring

Crystal diamond coating with increased crystallinity

Newly developed crystal diamond coating offers improved wear resistance and a longer tool life, made possible by increasing the crystallinity

CFRP machining comparison

Tool life comparison

Number of holes until delamination (0.5 mm) occurs

Wear comparison

Wear after 1,120 holes (NACHI) 350 holes (Competitor)

Catalog Download

PDF • Crystal Diamond Coated Drill (4 pages/320 KB)

The listed price applies to consumers in Japan.

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