Osg 1410100700 Thread Forming Tap M2x0.40 Metric Coarse

Product Description

The OSG 1410100700 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads in ductile materials without cutting. It produces an M2x0.40 Metric Coarse thread to a 6H class of fit at thread limit D5. The modified bottoming chamfer, with 2 to 2.5 chamfered threads, allows threading close to the bottom of a blind hole. Made from cobalt high-speed steel with a bright finish, this tap delivers added heat and wear resistance compared to standard HSS. Machinists and tool-room technicians use it for precision small-diameter tapping in CNC and manual applications.

This tap is suited for blind hole threading operations in a range of ferrous and non-ferrous materials. Rated material applications include alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. The right-hand thread direction and modified bottoming geometry make it a practical choice for production tapping where full thread depth near the hole bottom is required. It does not support coolant-through delivery, so flood or mist coolant should be applied externally during use.

Key Features

• Thread forming (cold-forming) design eliminates chips and reduces tap breakage risk in blind holes
• Modified bottoming chamfer (2 to 2.5P) threads close to the bottom of blind holes
• Cobalt HSS construction provides superior heat resistance for tapping hardened and stainless steel
• Bright finish suitable for use with a wide range of tapping fluids and lubricants
• 6H class of fit with D5 thread limit for consistent, accurate thread geometry
• Right-hand thread direction; compatible with standard tapping attachments and tap holders

Compatibility

Designed for use in blind hole threading of alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces where a M2x0.40 Metric Coarse internal thread is required.

Installation Notes

This tap should be installed in a properly sized tap holder or floating tap collet to allow axial compensation during the tapping cycle. Always use a recommended tapping fluid or cutting oil matched to the workpiece material to extend tool life and achieve consistent thread quality. Ensure the pre-drill hole diameter is correct for thread forming operations, as forming taps require a larger pilot hole than cutting taps of the same thread size. Follow shop safety procedures and machine manufacturer guidelines when setting spindle speed and feed rate for small-diameter taps.