Iscar 2300919 Indexable Cutoff Toolholder Right Hand

Product Description

The ISCAR 2300919 is a right-hand indexable cutoff toolholder designed for parting and grooving operations on CNC lathes and turning centers. Built to the SGTH toolholder style, it uses ISCAR Self Grip technology to secure GTN 3 and GTR 3 series inserts without additional clamping hardware. The shank measures 0.6299 inches in height and 0.4724 inches in width, with an overall length of 4.3307 inches. Maximum workpiece diameter capacity is 1.26 inches, and the minimum insert width is 0.122 inches. This toolholder is installed by machinists and CNC operators in production and job-shop turning environments.

The 2300919 is suited for cut-off and parting applications on workpieces up to 1.26 inches in diameter. Its compact head — 0.787 inches in length and 0.940 inches in height — allows close-clearance parting in tight setups. The back-of-bar to cutting edge distance is 0.6299 inches. The holder accepts GTN 3 and GTR 3 series inserts, making it compatible with a range of groove widths within the 0.122-inch insert width specification. No coolant-through capability is present on this model.

Key Features

• Right-hand SGTH-style toolholder for parting and cut-off operations
• Self Grip insert holding method — no set screws or wedge clamps required
• Accepts GTN 3 and GTR 3 series inserts
• Maximum workpiece diameter of 1.26 inches for small-diameter turning applications
• Compact head geometry: 0.787 inches long by 0.940 inches high
• Overall length of 4.3307 inches with a 0.4724 inches wide by 0.6299 inches tall shank

Compatibility

Compatible with GTN 3 and GTR 3 series inserts. The manufacturer part number cross-reference for this holder is SGTHR 16-3. Designed as an OEM-style replacement or direct application toolholder for right-hand SGTH-style insert systems.

Installation Notes

Installation should be performed by a qualified machinist with the machine powered down and in a locked-out state per applicable lockout/tagout procedures. Verify shank dimensions match the tool block or turret pocket before mounting. Torque the toolholder to the machine manufacturer's specified values for the turret or tool post style in use. Confirm insert seating and clamping integrity before resuming cutting operations.