Sumitomo U104415 Indexable Grooving Toolholder External Rh

Product Description

The SUMITOMO U104415 is an indexable grooving toolholder designed for external grooving operations on CNC lathes and turning centers. Built to the GND series style, this right-hand toolholder accepts a screw-clamping insert holding method and is compatible with GCML, GCMN, and GCMR insert geometries. It delivers a maximum depth of cut of 1 inch from a 1 x 1 inch square shank, making it a solid choice for standard external groove profiles. Machinists and toolroom professionals install this holder when cutting grooves, recesses, or undercuts on the outside diameter of a workpiece.

This toolholder is suited for external non-face grooving applications in production turning environments, job shops, and maintenance machining operations. The GND series style is a common platform in indexable turning setups where consistent groove width and depth repeatability are required. With an overall length of 6 inches and a shank length of 4.031 inches, the holder provides adequate reach for most standard turning center setups. It is a multi-use tool, meaning the same body can be re-used across insert changes without replacing the holder itself.

Key Features

• External, non-face grooving configuration with right-hand cutting direction
• Screw clamp insert retention for secure, repeatable insert seating
• Compatible with GCML, GCMN, and GCMR insert families
• Maximum depth of cut: 1 inch
• 1 x 1 inch square shank for standard toolholder blocks and quick-change systems
• Multi-use toolholder body supports repeated insert indexing without holder replacement

Compatibility

Accepts GCML, GCMN, and GCMR series indexable inserts. Designed as an OEM-style external grooving toolholder for CNC turning centers and manual lathes equipped with 1 x 1 inch square shank toolholding systems.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the toolholder firmly in the tool turret or quick-change toolpost before indexing inserts or running the machine. Power down and lock out the machine before changing inserts or adjusting the holder. Verify insert seating and screw torque against the insert manufacturer's specification before starting a cut.