Kennametal 1152735 E-sclp Indexable Boring Bar Left Hand

Product Description

The KENNAMETAL 1152735 is a left-hand E-SCLP indexable boring bar engineered for precision internal turning and boring operations on CNC lathes and machining centers. Built from solid carbide, this toolholder accepts CP.. style inserts secured by a screw-clamp holding method. It carries a minimum bore diameter of 23.62mm (0.930 inches) and an overall length of 254mm (10.0 inches), making it well suited for moderate-depth bore applications where rigidity and dimensional accuracy are critical. The through-coolant design delivers cutting fluid directly to the insert tip, reducing heat and extending tool life in demanding materials.

This boring bar is intended for professional machinists and tooling specialists working in production and job-shop environments. The left-hand orientation serves specific setups where conventional right-hand tooling cannot be positioned correctly, such as back-boring or opposite-spindle configurations. The 3/4-inch shank diameter fits standard boring bar holders and quick-change toolpost systems common in CNC turning centers. A neutral rake angle of 0 degrees and a -5 degree lead angle provide stable cutting geometry across a range of workpiece materials.

Key Features

• Solid carbide construction for maximum rigidity and vibration resistance in tight bore applications
• Through-coolant capability via a 0.281-inch coolant hole for direct chip evacuation and heat management
• Accepts CP.. series inserts with a 3/8-inch inscribed circle and 5/32-inch thickness, secured by screw clamp
• Left-hand holder orientation for back-boring and reverse-spindle setups
• Neutral rake with -5 degree lead angle delivers consistent edge engagement and predictable chip control
• Center to cutting edge dimension of 0.500 inches for accurate tool offset entry

Compatibility

Designed for use with CP.. series indexable inserts with a 3/8-inch inscribed circle and 5/32-inch insert thickness. Fits standard 3/4-inch boring bar pockets and quick-change toolholders on CNC lathes and turning centers.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before mounting or removing the toolholder. Ensure the shank is fully seated and clamped to the specified holder torque per the machine tool manufacturer guidelines before engaging the coolant circuit. Verify insert seating and screw torque using the appropriate Torx or hex key before taking the first cut.