Kyocera TKB03013 Micro Boring Bar 5mm Ezb Series

Product Description

The KYOCERA TKB03013 is a micro boring bar designed for precision internal boring operations in small-diameter bores. Built from micrograin solid carbide, it delivers the rigidity and edge retention needed for tight-tolerance work in steel and stainless steel. The bar features a 5.00 mm minimum bore diameter, a 5.00 mm shank diameter, and a maximum bore depth of 35.00 mm, making it well suited for deep, narrow bore applications where tool deflection and surface finish are critical. With a 0.15 mm corner radius and a right-hand cutting direction, the TKB03013 is intended for CNC turning centers and boring machines operated by machinists and toolroom professionals.

This micro boring bar is used in precision machining environments where small internal diameters require consistent chip control and dimensional accuracy. Its primary workpiece material is steel, with a secondary rating for stainless steel, covering a broad range of common production and job-shop applications. The EZB series designation indicates compatibility with standard micro boring bar setups. At 58.10 mm overall length, it fits compact tooling systems on CNC lathes and small-bore turning applications in both production and prototype environments.

Key Features

• Micrograin solid carbide construction for high wear resistance and edge stability
• 5.00 mm minimum bore diameter suits tight internal bore requirements
• 35.00 mm maximum bore depth supports deeper internal features without tool change
• 0.15 mm corner radius provides fine surface finish on small bores
• Right-hand cutting direction for standard CNC turning center setups
• 95-degree bar end angle for clearance in confined bore geometries
• Rated for steel and stainless steel workpiece materials

Compatibility

Designed as an OEM-style replacement and standard tooling option within the KYOCERA EZB series micro boring bar lineup, suitable for use in CNC turning centers and small-bore boring machines accepting a 5.00 mm shank diameter.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before mounting or removing boring bars. Secure the shank in a compatible tool holder to the holder manufacturer's specified clamping procedure, confirming proper overhang does not exceed the rated maximum bore depth. Verify cutting direction and tool offset settings in the CNC program before initiating the first cut.