Osg 1625006323 Thread Forming Tap 6-32 Unc Cobalt Ticn

Product Description

The OSG 1625006323 is a thread forming tap in the 6-32 UNC size, designed for cold-forming internal threads without cutting or producing chips. It carries a 3B class of fit and an H3 thread limit, making it suitable for precision threaded holes where consistent fit and finish are required. The modified bottoming chamfer, with 2.5 to 3 chamfered threads, allows threading close to the bottom of blind holes. Built from cobalt high-speed steel and finished with a TiCN coating, this tap handles demanding materials across a wide hardness range. It is part of OSG Series 16250 under the EXOPRO XPF product line and is installed by machinists and precision fabricators working in production or maintenance environments.

This tap is suited for both blind hole and through-hole threading applications. It performs across a broad range of workpiece materials including aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloys, and titanium. The cold-forming process eliminates chip evacuation concerns in blind holes, making it especially practical in automated CNC tapping operations and manual tapping where material ductility allows plastic deformation of the thread form.

Key Features

• 6-32 UNC thread size with right-hand thread direction and 32 threads per inch
• Modified bottoming chamfer with 2.5 to 3 chamfered threads for near-bottom blind hole access
• Cobalt HSS construction provides elevated heat and wear resistance compared to standard HSS
• TiCN coating reduces friction and extends tool life across abrasive and hard workpiece materials
• H3 thread limit and 3B class of fit for controlled tolerance internal threads
• No coolant-through design — suitable for standard tapping fluid or flood coolant setups
• Compatible with aluminum, stainless steel, titanium, high-nickel alloys, and multiple steel grades

Compatibility

Designed for use in blind hole and through-hole threading of ductile metals including aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloys, and titanium. Material application codes P, M, N, and H apply.

Installation Notes

Thread forming taps require adequate material ductility and should not be used on brittle workpiece materials such as cast iron or hardened non-ductile alloys. Power down spindle and secure the workpiece before tap changes on any machine tool. Use the correct tapping fluid or lubricant for the workpiece material to prevent galling and extend tool life. Verify the pre-drill hole diameter matches the recommended minor diameter for the 6-32 UNC thread form, as hole sizing is critical to thread quality and tap longevity.