Osg 1410101605 Thread Forming Tap M3x0.50 Metric Coarse

Product Description

The OSG 1410101605 is a thread forming tap from the HY-PRO NRT series, designed for cold-forming internal threads without cutting chips. Sized M3x0.50 to the Metric Coarse standard, it features a modified bottoming chamfer of 2 to 2.5 threads, making it well suited for threading close to the bottom of blind holes. The tap is manufactured from cobalt high-speed steel and carries a TiN coating to extend tool life in demanding applications. Class of fit is 4H with a thread limit of D3. Licensed machinists and tool-and-die technicians working in production or job-shop environments rely on this tap for consistent, strong threads in a wide range of metallic workpieces.

This tap is intended for blind hole threading applications across a broad material range including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. Its thread-forming action displaces rather than removes material, producing stronger threads with no chips to evacuate — an advantage in blind hole work where chip packing is a concern. It is appropriate for CNC tapping centers and manual tapping operations where precise torque control is maintained. The right-hand thread direction is standard for the vast majority of production threading setups.

Key Features

• Thread-forming (chipless) design eliminates chip evacuation issues in blind holes
• Cobalt high-speed steel construction for increased heat and wear resistance
• TiN coating reduces friction and extends tool life across high-volume runs
• Modified bottoming chamfer (2 to 2.5P) allows threading close to hole bottom
• 4H class of fit with D3 thread limit for consistent tolerance control
• Coolant-through feature is not present — suited for flood or manual lubrication setups

Compatibility

Designed for blind hole threading of M3x0.50 Metric Coarse threads in alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum workpieces.

Installation Notes

This tap should be installed by a qualified machinist using a properly sized tap holder or CNC tapping chuck calibrated for M3 tooling. Shut down and lock out any machine before loading or changing tooling. Use an appropriate tapping fluid or cutting oil rated for the workpiece material, especially when working with stainless or hardened steels. Do not exceed the recommended tapping depth of 0.6299 inches (16.00 mm) to avoid overloading the tap shank.