Seco 00072374 Indexable Threading Toolholder Internal Rh

Product Description

The SECO 00072374 is an indexable threading toolholder designed for internal threading and turning operations on CNC lathes and turning centers. Built from steel, this right-hand toolholder features a rectangular shank measuring 0.566 inches in height and 0.625 inches in width, with an overall length of 6.0 inches. It accepts two 16NR inserts held in place by a screw-clamp method, providing repeatable insert indexing and consistent thread form geometry. The toolholder belongs to the Snap Tap series and is intended for installation by machinists and CNC operators in production or job-shop turning environments.

This toolholder is suited for internal threading applications where bore access is required. A minimum bore diameter of 0.75 inches is needed to run this holder, and the head length of 1.5 inches accommodates typical thread depth requirements in both production and maintenance turning scenarios. The toolholder style is SN, compatible with 16NR inserts in a 3/8-inch inscribed circle size. It does not include a coolant-through port, making it appropriate for standard external flood coolant setups. The multi-use design supports both threading and turning cuts from a single holder configuration.

Key Features

• Internal, right-hand configuration for bore threading and turning operations
• Screw-clamp insert holding for secure, repeatable insert seating
• Accepts 16NR inserts with a 3/8-inch inscribed circle
• Steel construction for rigidity under interrupted and continuous cuts
• 6.0-inch overall length with a 1.5-inch head length for reach into bores
• No coolant-through port; compatible with standard flood coolant delivery

Compatibility

Designed for use with 16NR threading inserts in the 3/8-inch inscribed circle size, following the SN toolholder style designation. Compatible insert size code is 2. Verify spindle bore clearance against the 0.75-inch minimum bore diameter requirement before installation.

Installation Notes

Installation is performed by a qualified machinist or CNC technician. Power down and lock out the machine spindle before mounting or removing the toolholder. Verify that the boring bar shank is fully seated and clamped to the specified tool turret or toolpost before running any program. Confirm insert seating and screw torque per the insert manufacturer's guidelines before engaging the workpiece.