Scientific Cutting Tools BB2512 Radial Relief Boring Bar

Product Description

The SCIENTIFIC CUTTING TOOLS BB2512 is a radial relief boring bar engineered for precision internal turning and bore finishing operations. Manufactured from submicron-grade solid carbide, it delivers exceptional hardness and wear resistance compared to standard carbide grades. The bar features a right-hand cutting direction, a minimum bore diameter of 0.248 inches, and a maximum bore depth of 1.25 inches. With a 0.25-inch shank diameter and a 2.5-inch overall length, it fits standard toolholders used on CNC lathes and manual turning centers. Machinists and toolroom professionals install this bar for tight-tolerance bore work in ferrous and non-ferrous materials.

The BB2512 is suited for small-bore internal turning, back-boring, and finish boring in production machining and toolroom environments. Its compact geometry and solid carbide construction make it appropriate for operations where rigidity and dimensional accuracy are critical. The uncoated finish is typical for applications requiring sharp cutting edges without the added thickness of a coating layer, particularly in non-ferrous and soft alloy materials.

Key Features

• Submicron-grade solid carbide construction for superior hardness and edge retention
• Radial relief geometry reduces cutting forces and improves bore surface finish
• Right-hand cutting direction compatible with standard lathe spindle rotation
• Minimum bore diameter of 0.248 inches for small-bore applications
• Maximum bore depth of 1.25 inches on a 2.5-inch overall length
• Uncoated finish preserves edge sharpness for non-ferrous and soft material cutting

Compatibility

Designed as an OEM-style replacement and standard toolroom boring bar for CNC and manual lathes equipped with 0.25-inch shank toolholders requiring right-hand radial relief boring bar geometry.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the shank fully into the toolholder with proper clamping force to minimize overhang and chatter. Ensure the machine spindle is at a complete stop and the machine is locked out before mounting or changing the bar. Do not exceed the rated maximum bore depth of 1.25 inches, as excessive overhang beyond the supported shank length reduces rigidity and can cause tool deflection or breakage.