Busch Hitzlos Unmounted Wheel | Busch No. 777 220 | Pack of 12

The unmounted abrasive wheel hitzlos medium grit from Busch & Co. GmbH is a precision-engineered rotary abrasive tool designed for demanding dental laboratory applications. Classified under ISO 654 900 372 522 220, this wheel delivers consistent, controlled material removal across a range of ceramic and restorative workflows.

Product Details

• Type: Unmounted Abrasive Wheel
• Grit: Medium (Hitzlos)
• Standard Classification: ISO 654 900 372 522 220
• Pack Quantity: 12 wheels per pack

Key Features

The unmounted abrasive wheel hitzlos medium grit is formulated with a Hitzlos bonding system, which means it is designed to work with reduced heat generation during grinding — helping to protect heat-sensitive ceramic and porcelain materials from thermal stress. Medium grit provides an effective balance between aggressive stock removal and surface refinement, making it a versatile choice for intermediate finishing stages.

Instrument Dimensions

Per ISO 6360, the size number is the maximum head diameter in tenths of a millimeter. See our Busch Bur Size Chart for the full size conversion table, shank codes, and color ring guide.

Applications

The unmounted abrasive wheel hitzlos medium grit is well-suited for the following dental laboratory applications:

	Crown and Bridge Technology — Shaping, trimming and finishing of crown and bridge frameworks in the laboratory.
	Veneering/Ceramic Technology — Contouring, adjustment and finishing of veneering ceramics and all-ceramic restorations.

German Engineering

Like all Busch instruments, the unmounted abrasive wheel hitzlos medium grit is manufactured in Germany to exacting quality standards, ensuring reliable performance and consistent results in professional dental laboratory environments.

FAQ

What does Hitzlos mean? Hitzlos refers to a bonding and abrasive system engineered to minimise heat build-up during grinding, protecting delicate ceramic and porcelain materials.

Is this wheel supplied unmounted? Yes, the unmounted abrasive wheel hitzlos medium grit is supplied without a mandrel and is intended for use with a compatible mounting system.

How many wheels are included? Each pack contains 12 wheels.