Iscar 2893913 Boring Grooving Bar Holder Through Coolant

Product Description

The ISCAR 2893913 is a boring and grooving bar holder engineered for precision internal machining operations. Featuring a 0.236-inch inner diameter and a 1-inch outer diameter, this holder accepts compatible boring bars in the PICCO series and secures them with four lock-down screws for rigid, repeatable positioning. Overall length is 3.543 inches, and the head diameter measures 0.71 inches. An integrated through-coolant channel delivers cutting fluid directly to the cutting zone, reducing heat buildup and extending insert life during deep or interrupted grooving passes. Machinists and CNC turning-center operators working on tight-tolerance bore profiles will find this holder suited to demanding production environments.

This bar holder is intended for use in CNC turning centers and lathe tooling systems where internal grooving, profiling, or boring operations require a stable, coolant-fed setup. The PICCO series designation indicates compatibility with ISCAR PICCO-system boring bars. It is appropriate for both small-batch precision work and higher-volume production runs where consistent tool positioning and coolant delivery are critical to part quality and cycle time.

Key Features

• 0.236-inch bore ID accepts PICCO-series boring bars with close tolerance fit
• 1-inch outer diameter for mounting in standard tooling blocks or turret stations
• 3.543-inch overall length provides reach for typical internal grooving applications
• 0.71-inch head diameter suits compact tooling layouts
• Four lock-down screws deliver secure, high-clamping-force retention of the bar
• Through-coolant design channels fluid to the cutting zone for improved chip evacuation and tool life

Compatibility

Designed for use with ISCAR PICCO-series boring bars. Verify bar shank diameter matches the 0.236-inch bore ID and that your turret or tooling block accommodates the 1-inch OD before ordering.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before mounting or removing any tooling components. Ensure the coolant supply port is properly aligned and sealed to prevent leakage into the turret. Torque the four lock-down screws evenly and in a cross pattern to achieve uniform clamping force without distorting the bar holder bore.