Kennametal 1281802 Threading Toolholder External Right Hand

Product Description

The KENNAMETAL 1281802 is an indexable threading toolholder designed for external thread-cutting operations on CNC lathes and manual turning centers. Built in the LSAS toolholder style, it accepts LT 16ER series inserts and uses a clamp-style insert holding method for secure, repeatable positioning. The shank measures 0.75 x 0.75 inches (19.05 x 19.05 mm) with an overall length of 5 inches, making it a compact, right-hand configuration suited for standard external threading applications. Machinists and toolroom professionals install this holder in production and job-shop environments where consistent thread geometry and quick insert indexing are required.

This toolholder is intended for external threading on ferrous and non-ferrous workpieces in turning applications. Its right-hand orientation suits the most common lathe setups. The LT 16ER insert compatibility covers a range of thread profiles, and the clamp holding method keeps inserts firmly seated during interrupted or continuous threading cuts. The 3/8-inch insert inscribed circle size matches standard LT series threading inserts. This holder does not include coolant-through capability, making it straightforward to set up on standard coolant-off or flood-coolant machines.

Key Features

• LSAS toolholder style with right-hand cutting orientation
• Accepts LT 16ER series threading inserts via clamp holding method
• Square shank: 0.75 x 0.75 inches (19.05 x 19.05 mm) for rigid machine tool interface
• Overall length of 5 inches suits standard turning center toolposts and turrets
• Insert inscribed circle of 3/8 inch for compatibility with LT 16ER geometry inserts
• No coolant-through channel — simplified setup on standard turning equipment

Compatibility

Designed for use with LT 16ER series indexable threading inserts. This toolholder is part of the KENNAMETAL LT Threading series (series reference LSASR/L123). Specific machine compatibility depends on toolpost or turret bore size; confirm 0.75 x 0.75 inch shank clearance before installation.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Power down and lock out the machine before mounting or removing the toolholder from the turret or toolpost. Ensure the shank seating surfaces are clean and free of chips before clamping. Follow the machine tool manufacturer's recommended torque specifications for toolholder clamping hardware.