Ceramic Burs: KERA Cutter Collection

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KERA ceramic burs are Busch laboratory cutters whose working part is made of high-performance ceramic rather than tungsten carbide, built for dental acrylics and pre-sintered zirconia. This collection holds the K-series flame (No. K425) and taper round (No. K424, K429) cutters on the HP shank, in medium double cut (X) and coarse GQSR power cut, all made in Germany and shipping from our US warehouse.

Weighing up to 60% less than traditional carbide cutters, these premium German ceramic burs deliver superior milling behavior, reduced vibration, and outstanding control. Their extreme hardness and high fracture toughness make them ideal for fast, precise processing of dental prosthetics.

Key Features:

• Ceramic Burs are up to 60% lighter than comparable carbide cutters for smoother, fatigue-free operation
• High fracture toughness and extreme hardness for long-lasting performance
• Available in medium double cut (“X”) and coarse GQSR-power-cut designs
• Ceramic Burs are excellent for shaping denture bases, individual trays, orthodontic appliances, and all common dental acrylics
• Perfect for soft and non-hardening acrylics like deep-drawn mouth guards and relinings
• Ideal for working on green compacts of zirconium oxide – from separating to cleaning attachment points

Note: Not suitable for use on metals.

Ceramic Burs are perfect for dental laboratories, technicians, and prosthodontists working with acrylic prosthetics, bite trays, and zirconia restorations.

Work faster and more precisely with Busch KERA Ceramic Cutters – advanced lightweight ceramic technology designed for superior results on acrylics and pre-sintered zirconia.

Which KERA Ceramic Cutter Do You Need?

Choose the shape (flame or taper round) and head size first, then the cut: X for everyday contouring of acrylics, GQSR for faster material removal.

Laboratory Use

KERA cutters shape denture bases, individual trays, orthodontic appliances and all common dental acrylics, including soft and non-hardening materials such as deep-drawn mouth guards and relinings, and they work green compacts of zirconium oxide from separating to cleaning attachment points. They are not for use on metals. Run them on the straight handpiece at the speed Busch recommends — see our Dental Bur Speed Chart.

Care and Reconditioning

Laboratory rotary instruments are reusable: clean them after use and store them dry so the cutting surfaces stay sharp. Our Dental Bur Reprocessing & Sterilization Guide covers cleaning and sterilization for Busch rotary instruments.

Compare With

Busch Laboratory Bur Exclusives · Zirconia Bur and Polisher Collection · Dental Lab Carbide Bur Collection · Dental Lab Bur - Plastics Technology Collection · Bur Comparison Chart · Dental Bur Glossary

FAQ

How do I choose the right item from this collection? Every product page details the exact specification, reference number, and application; for cross-brand references and terminology, see our Bur Comparison Chart, Speed Chart, and Bur Glossary — and our experts are a call away at (917) 480-2682 ext 101.

How should these instruments be reprocessed? Follow the manufacturer’s validated reprocessing instructions and the symbols on each product’s packaging; our reprocessing guide covers the general workflow.

Where are these instruments made? The instruments in this collection are manufactured by Busch & Co. in Engelskirchen, Germany — a specialist in rotary precision instruments since 1905 — and ship fast from our US warehouse.

Further reading: Ceramic Burs: Busch’s KERA Burs 60% Lighter Than Carbide – When to Switch for Ac · The Complete Zirconia Finishing Workflow: Busch’s 5-Step Zirkon System Explained