Iscar 2301257 Indexable Cutoff Toolholder Left Hand

Product Description

The ISCAR 2301257 is a left-hand indexable cutoff toolholder designed for grooving, parting, and turning operations on CNC lathes and turning centers. Part of the Do Grip series, it uses a self-grip insert holding method and accepts DG. 1.. and DG. 3.. inserts with a minimum insert width of 0.118 inches and a maximum of 0.125 inches. The shank measures 0.6299 inches in both height and width, providing a square 16 mm shank profile. With an overall length of 5.906 inches and a head length of 1.142 inches, this toolholder is suited for precision cutoff and grooving work where consistent insert seating and rigidity are critical. It conforms to ISO 13399 tooling data standards.

This toolholder is intended for use in production and job-shop turning environments where left-hand cutoff or grooving operations are required. The DGT-style toolholder style fits standard lathe tool blocks and turrets that accept square-shank tooling at the 0.6299-inch shank size. It is appropriate for both light-duty production parting and profile grooving on workpieces up to 1.38 inches in diameter. Machinists and toolroom technicians working with bar-fed lathes or manual turret lathes will find this holder compatible with standard ISCAR Do Grip insert inventory.

Key Features

• Left-hand orientation for cutoff and grooving on opposing-tool or gang-tooling setups
• Self-grip insert clamping method secures DG. 1.. and DG. 3.. inserts without additional clamp hardware
• Square 0.6299 x 0.6299 inch shank fits standard lathe tool blocks for this size range
• Maximum workpiece diameter of 1.38 inches suits small-diameter bar stock and tubing applications
• Head length of 1.142 inches and back-of-bar to cutting edge of 0.630 inches provide clearance geometry for parting operations
• Compliant with ISO 13399 cutting tool data representation standards

Compatibility

Accepts DG. 1.. and DG. 3.. series inserts from the ISCAR Do Grip system. Compatible with lathe tool blocks and turrets designed for 0.6299-inch square-shank toolholders.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the lathe spindle is fully stopped and the machine is in an energy-isolated state before mounting or indexing inserts. Seat the shank fully into the tool block and torque all clamping screws per the machine tool manufacturer specifications. Verify insert seating and tool overhang before resuming cutting operations.