Rotary burr GRAPHITE 55H362 — single piece, metal cutting/engraving accessory

GRAPHITE rotary burr 55H362 — single piece metal cutting and engraving accessory. This spherical (type D) cemented carbide burr is intended for use with die grinders and rotary tools for shaping, profiling, deburring and engraving on metal, aluminum and certain plastics. Compact and lightweight at approximately 20 g, the tool is built for precision work and workshop maintenance tasks where controlled material removal and consistent cutting performance are required. The cutter features double flutes that promote efficient chip evacuation and reduce load on the cutting edges, delivering stable results in demanding conditions. It is designed for straight (inline) grinders and for medium speed operation.

Advantages

The GRAPHITE rotary burr provides high hardness and excellent abrasive wear resistance thanks to its cemented carbide construction, which ensures long service life even under intensive use. Double-notched geometry facilitates effective chip removal and limits clogging, producing smaller chips that reduce stress on the tool and the workpiece. Precision spherical shape and balanced dimensions allow controlled profiling and finishing on hard materials while remaining suitable for both coarse material removal and fine detail work.

Suitable for

• Material removal, shaping and profiling on metals and aluminum
• Deburring and edge finishing after machining or welding
• Engraving and surface texturing on metals and compatible plastics
• Precision workshop maintenance and repair tasks

Key specifications

• Shape: spherical (type D)
• Head diameter: 12 mm
• Working length / ball diameter: 10 mm (spherical cutting area)
• Material: cemented carbide (hard metal)
• Flute type: double-notched / double-cut for chip evacuation
• Recommended speed range: medium speeds (suitable for inline/straight grinders)
• Weight: approx. 20 g per piece

How to use

Mount the rotary burr securely in the collet of a straight (inline) grinder or die grinder designed for rotary accessories. Verify that the tool is correctly centered and tightened before operation. Select a medium rotational speed appropriate for the material and the 12 mm head diameter; avoid using this burr in a handheld drill. Apply steady, controlled contact with the workpiece and allow the cutter to remove material without excessive force—let the tool do the cutting. Maintain a consistent feed and avoid lateral impacts or sudden direction changes to preserve tool life and achieve a uniform finish.

Usage recommendations

Use personal protective equipment including safety glasses, gloves and hearing protection. Clear chips frequently and use compressed air or a soft brush to remove debris; avoid using the tool on materials outside its recommended range. For extended life, avoid excessive heat buildup by using moderate feed rates, intermittent cutting, and appropriate coolant or lubrication when working on heat-sensitive alloys.