1. BSPT 55° threading insert, external and internal threading inserts meet different cutting condition, perfect chip breaker avoid workpiece scraping. Stable tooling life and machining performance. Applied for steel, stainless steel, cast iron. Big stock, fast delivery.

NPT 60° threading insert, external and internal threading inserts meet different cutting condition, perfect chip breaker avoid workpiece scraping. Applied for steel, stainless steel, cast iron. High quality at a fair price.

Whitworth 55°threading insert with external and internal threads, unique cutting edge and chip breaker design achieve excellent machining performance. Applied for steel, stainless steel, cast iron. Complete range, big stock, fast delivery.

V-profile 55°and 60°No-topping threading insert , external and internal threading inserts applied for different machining conditions, fan-pitch can be use to different pitch of thread machining, reducing cutting tools stock. Applied for steel, stainless steel, cast iron. Stable tools quality achieve stable machining performance.

Metric 60°threading insert, external and internal threading inserts applied for different machining condition, unique cutting edge and chip breaker design achieve high-efficiency machining performance. Applied for steel, stainless steel, cast iron, alloy steel. Complete range, really competitive price.