Rotary burr GRAPHITE 55H373 — single piece, 44 g weight

GRAPHITE rotary burr model 55H373 is a single-piece, ogival (rounded) type F cutter designed for shaping, deburring and material removal with rotary tools. Supplied as one burr per pack and weighing 44 g, this carbide burr is intended for work on metal, aluminum and plastics when used in compatible rotary grinders. The cutter features double flutes for efficient chip evacuation and is manufactured from cemented carbide to provide high hardness, wear resistance and long service life under demanding conditions. Its geometry and diameter make it suitable for lower speed ranges and for controlled material removal in finishing and shaping tasks.

Advantages

The use of cemented carbide construction delivers high hardness and resistance to abrasive wear, increasing tool life even under heavy use. Double notches (double flutes) facilitate efficient removal of chips and reduce cutting load by producing smaller chips. The ogival rounded profile provides a smooth cutting action for contouring and finishing, while the compact size and single-piece supply simplifies tool selection and replacement. Precision workmanship ensures consistent performance and dimensional stability during operation.

Suitable for

• Shaping and profiling of metal components
• Deburring edges on aluminum parts
• Removing excess material from plastic mouldings
• Controlled finishing and contour work with rotary grinders

Key specifications

• Cutter geometry: ogival (rounded), type F
• Material: cemented carbide (tungsten carbide)
• Flute design: double notches (double flutes) for improved chip evacuation
• Working dimensions: 14 mm head diameter × 25 mm cutting length
• Recommended speed range: low speeds due to cutter diameter (use appropriate grinder RPM settings)
• Pack quantity: single piece
• Net weight: 44 g

How to use

Install the rotary burr in a straight grinder or compatible rotary tool with the correct shank clamping to ensure concentric rotation. Do not use this cutter with a drill. Select a low to moderate spindle speed consistent with the cutter diameter and the material being machined. Apply light, steady pressure and make multiple shallow passes rather than heavy cuts to preserve tool life and control surface finish. Maintain a consistent angle and feed rate for uniform results. After use, clean chips from the flutes and inspect the cutting edges before storage.

Usage recommendations

For safe and effective operation, wear appropriate personal protective equipment including eye protection and gloves, secure the workpiece, and ensure proper ventilation when machining metals or plastics. Match the grinder speed to the burr diameter and material hardness, avoid excessive feed forces, and periodically clear chips to prevent clogging and overheating.