The oval SUPER Q® tool steel burs “77” by NIQUA are versatile precision tools designed for machining soft precious metals such as gold, silver, copper, brass, and other soft metals. Thanks to their high-quality tool steel head and oval shape, they enable precise, clean cutting—ideal for jewellery manufacturing, engraving, and fine metalworking.
These burs are particularly durable, run with minimal vibration, and maintain excellent cutting performance even at high speeds. Whether working with gold, silver, or other soft metals, the SUPER Q® “77” delivers reliable precision results and an exceptionally long service life.
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