MNR Micro Boring Carbide End Mill TiSiN HRC55

MNR Micro Boring Carbide End Mill

Designed for precision small-hole boring and internal contour machining, this MNR Micro Boring Carbide End Mill delivers exceptional dimensional accuracy, stable cutting performance, and superior surface finish quality for CNC precision machining applications. Manufactured from premium solid tungsten carbide with advanced TiSiN coating, it is suitable for machining carbon steel, stainless steel, mold steel, and other materials below HRC55.

The compact cutting geometry and reinforced neck structure allow efficient machining in narrow internal spaces while maintaining excellent rigidity and anti-vibration performance during fine boring operations.

Product Features

Precision Micro Boring Geometry

Specially designed for:

• Small hole boring
• Internal contour machining
• Internal radius processing
• Precision cavity machining
• Fine-detail internal machining
• Micro finishing applications

Provides stable and accurate internal machining performance.

Reinforced Compact Structure

The short cutting edge and strengthened neck improve rigidity and reduce vibration during small-hole machining operations.

Premium Solid Carbide Construction

Manufactured from high-quality tungsten carbide for excellent wear resistance, rigidity, and long tool service life.

Advanced TiSiN Coating

The TiSiN nano coating enhances:

• Heat resistance
• Surface hardness
• Wear resistance
• Oxidation resistance

Helping extend tool life and improve machining stability during continuous CNC operations.

Stable Precision Machining

Optimized for fine boring and precision finishing with improved dimensional consistency and smooth internal surface quality.

HRC55 Machining Capability

Suitable for machining materials with hardness up to HRC55 while maintaining stable cutting performance and excellent accuracy.

Applications

Widely used for:

• Small hole precision boring
• Internal cavity machining
• Mold internal profiling
• Internal radius machining
• Fine-detail CNC processing
• Precision finishing operations

Suitable Materials

• Carbon steel
• Alloy steel
• Stainless steel
• Mold steel
• Pre-hardened steel below HRC55

Product Advantages

• Excellent small-hole machining capability
• High dimensional accuracy
• Stable internal cutting performance
• Reduced vibration during boring
• Smooth internal surface finish
• Long tool service life
• Ideal for precision micro-machining

Perfect for CNC machining centers, mold manufacturing, precision internal machining, and industrial applications requiring accurate small-hole boring and stable internal profiling performance.