- Product Series: Heavy-Duty UN Unified U-Type laydown threading inserts (Full Profile).
- Coarse Pitch Specialist: Engineered specifically for large American Standard threads ranging from 4.5 TPI down to extra-coarse 2 TPI.
- Massive Stability: Large U-Type format (up to 3/4″ I.C.) allows for deep cuts that standard 16er threading inserts cannot handle.
- Complete Thread Form: Full Profile carbide threading inserts ensure a precise, topped crest for 60° UN, UNC, and UNF threads.
- Versatility: High-performance threading inserts for lathe holders, available in both Right-Hand and left hand thread insert configurations.
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Product Overview
Dominate your heavy-duty threading applications with our UN Unified U-Type laydown threading inserts. While standard tools are limited to fine and medium pitches, these robust carbide threading inserts are designed for the extreme forces required to machine coarse American Unified threads (UN, UNC, UNF).
Featuring a “Full Profile” geometry, these inserts cut the full thread depth and top the crest in a single operation. The U-Type design utilizes a larger insert size to provide the structural integrity needed for 3 TPI or 2 TPI threads—tasks that are impossible for a standard 16er threading insert to perform.
Key Features & Benefits
- Extreme Capability: Extends your machining range to 2 TPI, far beyond the 8 TPI limit of most standard tools.
- Rigid Performance: The large support surface of the U-Type insert eliminates vibration during heavy stock removal.
- Comparison: A standard 16er threading insert (3/8″ I.C.) lacks the size to support coarse threads; our 27U and 33U series are the dedicated solution for these large diameters.
- Directional Options: We stock comprehensive solutions, including left hand thread insert models (e.g., 27U EL 3 UN) for reverse turning or specific setups.
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