Osg 1625001643 Thread Forming Tap 1-64 Unc Cobalt Ticn

Product Description

The OSG 1625001643 is a thread forming tap designed for creating internal 1-64 UNC threads in a wide range of metals. Unlike cutting taps, thread forming taps displace material rather than cut it, producing stronger threads with no chip generation. This tap features a modified bottoming chamfer with 2.5 to 3 chamfered threads, allowing threading close to the bottom of blind holes. It is manufactured from cobalt high-speed steel and finished with a TiCN coating, which extends tool life in demanding materials. The H3 thread limit designation ensures dimensional control within standard tolerance ranges. Licensed HVAC technicians, machinists, and maintenance professionals working with precision fastener applications will find this tap suited to both blind hole and through-hole threading operations.

This tap is built for use across a broad material range including aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloys, and titanium. Its Series 16250 EXOPRO XPF design targets applications where thread strength and surface finish are critical. It is well suited to production and maintenance environments where consistent thread forming in tough materials is required. The right-hand thread direction and compact overall length of 1.841 inches make it practical for confined workpiece geometries.

Key Features

• Thread forming design eliminates chips, reducing risk of chip-related thread damage in blind holes
• Cobalt high-speed steel construction provides heat and wear resistance in difficult-to-machine alloys
• TiCN coating extends tool life and reduces friction across steel, stainless, and titanium workpieces
• Modified bottoming chamfer (2.5 to 3 threads) enables threading close to hole bottoms
• H3 thread limit ensures consistent 2B class of fit compliance across production runs
• Compatible with both blind hole and through-hole threading applications

Compatibility

Designed for use in materials coded P, M, N, and H, including aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloys, and titanium. Suitable for blind hole and through-hole threading applications requiring a 1-64 UNC 2B thread form.

Installation Notes

This tap should be installed in a machine spindle or tapping head appropriate for the 1-64 thread size; hand tapping is not recommended for forming taps in harder materials. Power down all equipment and secure the workpiece before tool changes. Use a lubricant or cutting fluid compatible with the workpiece material to maintain coating integrity and thread quality. Follow applicable shop safety standards and verify tap alignment before engagement to prevent tap breakage in small-diameter holes.