Cutting disc with tungsten carbide, Proxxon PR28838, 20 mm diameter

Proxxon PR28838 is a 20 mm diameter cutting disc with a tungsten carbide cutting edge designed for precision cutting tasks with compatible rotary tools. The compact disc provides a hard, wear-resistant edge suitable for cutting and trimming small metal, wood and composite parts. Its small size and carbide tip enable controlled material removal in confined areas, making it appropriate for model making, jewelry work and focused repair tasks.

Advantages

The tungsten carbide cutting edge delivers high wear resistance and maintains sharpness longer than standard abrasive wheels. The 20 mm diameter offers improved access to tight spaces and precise control during delicate cuts. The disc's stable construction minimises vibration and allows consistent cutting performance on a variety of thin materials. Compatibility with standard rotary tool arbors makes it easy to install and replace.

Suitable for

• Detailed model making and scale modelling parts
• Jewellery shaping, trimming and small adjustments
• Small repair jobs on metal, plastic and composite components
• Precision trimming of wooden dowels, veneers and thin panels

Key specifications

• Disc diameter: 20 mm
• Cutting edge material: tungsten carbide
• Designed for use with compatible rotary tools
• Suitable for cutting metal, wood and composite materials
• Compact profile for work in confined areas

How to use

Fit the cutting disc securely into the rotary tool according to the tool manufacturer's instructions, ensuring the arbor and collet are appropriate for the disc diameter. Operate the tool at speeds recommended for small carbide cutting wheels and apply light, steady pressure—allowing the carbide edge to do the cutting rather than forcing the disc. Make multiple shallow passes when removing material from hard or thick substrates to maintain control and avoid overheating the cutting edge. After use, inspect the disc for wear or damage and replace it if chips or significant wear are observed.

Usage recommendations

Use appropriate personal protective equipment such as eye protection and gloves, and secure the workpiece before starting. Avoid lateral bending forces on the disc and do not use the wheel on materials or applications beyond its intended purpose to prevent breakage.