Kennametal 1152756 Indexable Boring Bar Right Hand E-swlp

Product Description

The KENNAMETAL 1152756 is a right-hand indexable boring bar in the E-SWLP toolholder style, designed for internal turning and bore finishing operations on CNC lathes and machining centers. Built from solid carbide, it accepts WP-style inserts secured by a screw-clamp holding method. The bar has a minimum bore diameter of 12.19mm (0.480 inches), a 3/8-inch (9.53mm) shank diameter, and an overall length of 152.40mm (6.000 inches). Through-coolant capability is built in via a 0.125-inch coolant hole, allowing direct flood or high-pressure coolant delivery to the cutting zone for improved chip evacuation and tool life.

This boring bar is suited for precision bore machining in ferrous and non-ferrous materials in both production and job-shop environments. The neutral rake geometry with a 0-degree rake angle and a -3-degree lead angle provides stable, predictable cutting action across a range of workpiece materials. A center-to-cutting-edge dimension of 0.250 inches supports accurate bore sizing. It is intended for use by machinists and tooling specialists working on manual or CNC turning equipment where repeatable bore geometry is required.

Key Features

• Solid carbide construction for rigidity and vibration resistance in small-bore applications
• Through-coolant design with 0.125-inch coolant hole for chip control and extended insert life
• Screw-clamp insert retention ensures secure indexing and consistent edge positioning
• Neutral rake (0 degrees) with -3-degree lead angle for stable cutting across common workpiece materials
• Right-hand cut orientation for standard OD-to-ID turning setups
• Compatible with WP-style inserts with 1/4-inch inscribed circle and 3/32-inch insert thickness

Compatibility

Designed for use with WP-style indexable inserts with a 1/4-inch inscribed circle and 3/32-inch thickness. Specific insert grades and geometries should be selected based on workpiece material and cutting conditions per the KENNAMETAL E-SWLP tooling system.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholding specifications. Ensure the machine spindle and turret are fully powered down and locked out before mounting or indexing. Confirm shank clamp torque and coolant line connections per the machine tool and toolholder documentation. Do not exceed the minimum bore diameter rating, as overhang beyond the design envelope increases deflection and chatter risk.