Kennametal 1953341 Internal Grooving Toolholder Right Hand

Product Description

The KENNAMETAL 1953341 is an indexable internal grooving toolholder designed for right-hand cutting operations on CNC lathes and turning centers. Built to the A-A4E toolholder style, it accepts A4..04.. series inserts secured by a clamp-style holding method, delivering rigid, repeatable insert positioning during internal grooving cycles. The shank diameter is 19.05 mm, overall length is 8 inches (203.2 mm), and the tool supports through-coolant delivery to maintain cutting temperatures and clear chips at depth. Maximum depth of cut is 0.276 inches, and minimum groove width is 0.157 inches, making this holder well-suited for producing narrow internal grooves in bored or drilled features.

This toolholder is used in internal grooving applications where a boring bar-style setup is required. The minimum hole diameter it enters is 0.984 inches (25 mm), and maximum bore depth reaches 1.570 inches, covering common internal groove scenarios on turned components in job shop, production, and maintenance machining environments. The back-of-bar to cutting edge dimension is 0.512 inches (13 mm), and center to cutting edge measures 0.512 inches, giving setup technicians the geometry data needed for tool offset entry at the control. The multi-use designation indicates this holder accommodates more than one insert seating orientation within the A4 series. Installation is performed by machinists or CNC setup technicians familiar with Kennametal A4 series tooling systems.

Key Features

• Right-hand internal grooving configuration for CNC turning center use
• Through-coolant capability for chip evacuation and thermal management at depth
• Clamp-style insert holding for secure, repeatable A4..04.. insert seating
• Minimum hole entry diameter of 0.984 inches supports typical bored-feature access
• Maximum depth of cut of 0.276 inches and minimum groove width of 0.157 inches
• Steel construction for rigidity and vibration resistance during interrupted internal cuts

Compatibility

Compatible with A4..04.. series inserts. Toolholder series is A4, style A-A4E, with insert seat size 4. Consult Kennametal A4 series insert documentation to confirm specific insert grades and geometries suitable for the workpiece material and groove profile required.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the spindle before mounting or removing the toolholder from the turret or boring bar station. Verify insert seating and clamp torque per the toolholder manufacturer documentation before cycling the machine. Confirm tool offset values using the back-of-bar and center-to-cutting-edge dimensions at the machine control before taking the first cut.