Guhring 9257100060430 Profile Boring Bar Solid Carbide

Product Description

The GUHRING 9257100060430 is a solid carbide profile boring bar designed for internal boring and profiling operations on CNC lathes and machining centers. Built from fine grain solid carbide with a Nano-A finish coating, it delivers consistent cutting performance in tight-tolerance bores. The bar accepts a 6 mm shank diameter, reaches a minimum bore diameter of 5.7 mm, and handles a maximum bore depth of 42 mm. With an overall length of 67 mm and a 0.2 mm corner radius, it suits precision finishing passes where dimensional accuracy and surface finish are critical. Machinists and tooling specialists working in production or job-shop environments will find this bar well suited to small-diameter internal profile work.

This boring bar is intended for small-bore internal turning and profiling applications in metalworking operations. Its right-hand cutting direction makes it compatible with standard spindle rotation on conventional CNC turning setups. The fine grain carbide substrate and Nano-A coating support use in ferrous and non-ferrous materials where edge retention and wear resistance matter. It is suited to both production runs and prototype work requiring precise bore geometry and controlled corner radii.

Key Features

• Fine grain solid carbide construction for improved edge retention and rigidity in small-diameter bores
• Nano-A finish coating for enhanced wear resistance and reduced friction at the cutting edge
• 0.2 mm corner radius for accurate profile and finishing passes
• Right-hand cutting direction compatible with standard CNC lathe spindle rotation
• 6 mm shank diameter with 67 mm overall length for stable toolholder engagement
• Handles bore depths up to 42 mm from a minimum entry diameter of 5.7 mm

Compatibility

Designed as an OEM-style solid carbide boring bar for use in standard 6 mm boring bar toolholders on CNC lathes and turning centers performing small-bore internal profiling operations.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank fully within the toolholder to the manufacturer-recommended clamping depth before beginning any cut. Ensure the machine spindle is fully stopped and the control is in an e-stop or safe state before mounting or removing the bar. Follow your facility safety procedures and machine tool builder guidelines for toolholder torque and runout verification prior to first use.