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The VALUE COLLECTION L07183601 is a solid carbide on-edge threading insert designed for cutting 60-degree V-form threads on external and internal applications. Built to grade TCN55 with a PVD titanium nitride (TiN) finish, this insert delivers wear resistance and thermal stability during threading operations on ferrous and non-ferrous materials. The inscribed circle measures 1/2 inch with a thickness of 0.1875 inches (3/16 inch) and a hole diameter of 0.2040 inches. It carries a C3 material grade, making it suitable for general-purpose threading at moderate cutting speeds. Machinists and toolroom operators working with CNC lathes or manual turning centers will find this insert a direct fit for standard on-edge threading toolholders.
This insert is used in production machining and toolroom environments where 60-degree unified or metric V-thread profiles are required. It handles both external threading on shafts, studs, and bolts, and internal threading in bored holes. The TNMA insert style seats on-edge in compatible toolholders, orienting the cutting edge perpendicular to the workpiece for consistent thread form. Typical applications include job shop turning, maintenance machining, and light production runs across a range of materials within the C3 grade range.
Designed for use in on-edge threading toolholders that accept TNMA-style inserts with a 1/2 inch inscribed circle and a 0.2040 inch hole diameter. Verify toolholder seat geometry and clamping screw size before installation.
Installation is performed by a machinist or toolroom technician. Power down and lock out the machine spindle before seating or removing inserts. Use the correct torque screwdriver for the clamping screw to avoid cracking the carbide body — do not over-tighten. Inspect the toolholder pocket for chips or debris before installing a new insert to ensure full, flat seating.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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