Kennametal 1328593 Indexable Boring Bar Left Hand A-sclc

Product Description

The KENNAMETAL 1328593 is a left-hand A-SCLC indexable boring bar designed for internal turning and boring operations on CNC lathes and turning centers. Built from steel, it features a 1-inch shank diameter and a 12-inch overall length, supporting a minimum bore diameter of 30.48mm (1.2000 inches). The insert is held in place by a screw-clamping method with a neutral rake angle of 0 degrees and a -5 degree lead angle, giving machinists precise control over chip flow and cutting geometry. Through-coolant capability is provided via a 1/4-18 NPT coolant hole, helping to manage heat and extend tool life during deep-bore applications.

This boring bar is suited for production and job-shop environments where consistent, repeatable internal diameter finishing or roughing is required. It is typically installed on CNC turning centers or manual lathes equipped with a coolant-through turret or tooling block. The left-hand orientation makes it appropriate for specific spindle-direction or approach-angle requirements in internal machining setups. It accepts CC.. style inserts with a 3/8-inch inscribed circle and 5/32-inch thickness, giving toolroom personnel flexibility in selecting grades and geometries for the material being cut.

Key Features

• Left-hand A-SCLC toolholder style for internal boring operations
• Through-coolant design with 1/4-18 NPT coolant hole thread for heat management in deep bores
• Screw-clamping insert holding method for secure, repeatable insert indexing
• Neutral rake at 0 degrees with -5 degree lead angle for controlled cutting geometry
• Accepts CC.. inserts with 3/8-inch inscribed circle and 5/32-inch insert thickness
• Steel construction for rigidity and vibration damping in standard boring applications

Compatibility

Designed to accept CC.. style inserts with a 3/8-inch inscribed circle and 5/32-inch thickness. Consult insert manufacturer cross-reference guides to confirm grade and geometry compatibility for the specific workpiece material and cutting conditions.

Installation Notes

This toolholder is installed by machinists or toolroom technicians on a CNC lathe or turning center turret. Before mounting, confirm the machine spindle is powered down and the turret is in a safe indexed position. Verify the coolant-through connection matches the machine tooling block port before torquing the shank clamp. Insert indexing and clamping screw seating should be performed with the appropriate Torx or hex key per the insert manufacturer's tooling assembly guidelines.