Osg 1605056247 Thread Forming Tap 5/16-24 Unf Cobalt Ticn

Product Description

The OSG 1605056247 is a thread forming tap designed for cold-forming internal threads in ductile and malleable materials. Unlike cutting taps, this tool displaces material rather than removing it, producing stronger threads with no chips to clear. It is built from cobalt high-speed steel and finished with a TiCN coating for extended tool life under demanding production conditions. The tap carries a 5/16-24 UNF thread profile, a 2B class of fit, and an H7 thread limit, making it suitable for precision threaded assemblies. Coolant-through capability supports high-speed tapping operations in CNC machining centers and production tap cycles.

This tap is suited for blind hole threading in a wide range of materials including aluminum, cast aluminum, carbon steel, alloy steel, die steel, stainless steel, high-nickel alloy, and titanium. The modified bottoming chamfer, with 2 to 2.5 chamfered threads, allows threading close to the bottom of a blind hole. It is used by machinists, tool-and-die makers, and production shops requiring consistent thread quality across high-cycle runs. The OSG EXOPRO XPF-OIL series is engineered for oil-based coolant environments and optimized for the material application codes P, M, K, N, and H.

Key Features

• Thread forming design produces chip-free, stronger threads by cold-forming rather than cutting
• Cobalt HSS construction provides heat and wear resistance in tough alloys and stainless steel
• TiCN coating reduces friction and extends tool life in abrasive materials
• Coolant-through design supports high-speed CNC tapping with oil-based coolant
• Modified bottoming chamfer allows threading near the base of blind holes
• H7 thread limit and 2B class of fit meet standard tolerance requirements for precision assemblies

Compatibility

Designed for use in blind hole threading applications across aluminum, cast aluminum, carbon steel, alloy steel, die steel, stainless steel, high-nickel alloy, and titanium workpieces. Part of the OSG Series 16050 EXOPRO XPF-OIL product line.

Installation Notes

This tap is intended for use by qualified machinists in CNC machining centers or production tapping equipment. Ensure the spindle and tap holder are properly aligned before engaging the workpiece to avoid tap breakage or cross-threading. Use oil-based cutting fluid compatible with the workpiece material and confirm coolant-through flow is active before beginning the cycle. Follow shop safety protocols and machine manufacturer guidelines when handling tooling at operating speeds.