Kennametal 1953347 Internal Grooving Toolholder

Product Description

The KENNAMETAL 1953347 is a right-hand indexable internal grooving toolholder designed for precision groove cutting in bores and internal diameters. Built to Kennametal A4 series standards, it accepts A4..04.. series inserts held by a clamp-style insert holding method. The toolholder features through-coolant capability to manage heat and chip evacuation during deep internal grooving operations. It delivers a maximum depth of cut of 0.63 inches and a minimum groove width of 0.157 inches, making it well suited for tight-tolerance internal grooving on CNC lathes and turning centers. The steel construction provides rigidity under high cutting loads typical of production turning environments.

This toolholder is intended for internal grooving applications where the tool is fed into a bore. It requires a minimum hole diameter of 2.047 inches and supports a maximum bore depth of 3.15 inches. The back-of-bar to cutting edge distance is 1.181 inches, and the overall length is 12 inches. The multi-use designation indicates compatibility with a range of groove profiles when paired with appropriate A4..04.. inserts. This tool is typically installed and used by machinists and CNC turning specialists in job shop, production, and toolroom settings.

Key Features

• Right-hand internal grooving toolholder in the Kennametal A4 series
• Maximum depth of cut: 0.63 inches; minimum groove width: 0.157 inches
• Through-coolant design aids chip evacuation and tool life in deep bore applications
• Clamp-style insert holding for secure, repeatable insert positioning
• Compatible with A4..04.. series inserts for versatile grooving profiles
• Steel construction for rigidity and durability under heavy cutting loads

Compatibility

Designed for use with A4..04.. series inserts. Toolholder style is A-A4E. MSC and manufacturer cross-reference number is A24TA4EMR/L0416N. Requires a minimum bore diameter of 2.047 inches.

Installation Notes

Installation should be performed by a qualified machinist or CNC toolroom technician. Ensure the machine spindle is fully stopped and the CNC control is in a safe state before mounting or removing the toolholder. Confirm the shank seats fully and squarely in the turret or toolpost and that all clamping fasteners are properly tightened per the machine tool manufacturer specifications before cutting. Connect through-coolant supply lines according to the machine tool coolant system requirements before initiating a cutting cycle.