3.50mm Carbide Micro Boring Bar 20mm Cutting Length 5mm Shank MBS-1378.787 K227

This 3.50mm carbide micro boring bar from Kyocera is designed for precision internal diameter profiling and small-bore boring in CNC and manual lathe applications.

Manufactured from sub-micron grain solid carbide, this tool provides excellent rigidity, wear resistance, and dimensional stability for fine internal turning operations where precision and surface finish are important.

With a 3.50mm cutting diameter, 20mm cutting length, 50mm overall length, and 5mm shank, this boring bar is well suited for internal profiling and bore enlargement in confined spaces.

The standard length design offers a practical balance of reach and rigidity, while the compact carbide construction helps reduce deflection during delicate boring work.

This tool is part of the Kyocera Series MBS line for internal diameter profile boring.

Common applications include:

• Internal bore finishing
• Small diameter boring
• Precision internal profiling
• Fine ID machining in tight spaces
• Micro turning applications

Manufacturer: Kyocera

Manufacturer Part Number: MBS-1378.787

Country of Origin: USA

Benefits

• Solid carbide construction for rigidity and wear resistance
• Designed for precision internal diameter profile boring
• 20mm cutting length supports deeper internal reach
• Compact 5mm shank for secure holding
• Suitable for fine finishing and profiling work

Specifications