Osg 1410104705 Thread Forming Tap M8x1.25 Cobalt Tin

Product Description

The OSG 1410104705 is a thread forming tap from the HY-PRO NRT series, designed for cold-forming internal threads without cutting. Rather than removing material, it displaces metal to produce a stronger, burr-free thread profile. Built from cobalt high-speed steel with a TiN (titanium nitride) coating, this tap handles demanding applications in alloy steel, stainless steel, carbon steel, die steel, hardened steel, and aluminum. The plug chamfer with 4 to 4.5 chamfered threads provides a gradual lead-in suitable for through-hole threading. Overall length is 2.7165 inches and tapping depth reaches 1.1260 inches, making it a capable choice for M8x1.25 metric coarse thread production.

This tap is suited for through-hole threading operations in machine shop, production, and maintenance environments where M8x1.25 metric coarse threads are required. It is appropriate for use in CNC machining centers, drill presses, and tapping machines. The right-hand thread direction and 6H class of fit align with standard metric fastener tolerances. Material application codes P and N confirm suitability across a broad range of ferrous and non-ferrous workpiece materials encountered in general manufacturing and repair work.

Key Features

• Thread forming (cold-forming) design produces stronger threads with no chips or burrs
• Cobalt HSS construction provides heat and wear resistance in tough materials
• TiN coating reduces friction and extends tool life in high-cycle applications
• Plug chamfer (4 to 4.5 chamfered threads) for controlled lead-in in through-hole applications
• 6H class of fit with D9 thread limit meets standard metric fastener tolerance requirements
• No coolant-through requirement simplifies setup on standard equipment

Compatibility

Designed for M8x1.25 metric coarse through-hole threading in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces, consistent with material application codes P and N.

Installation Notes

Thread forming taps should be installed by qualified machinists or tooling technicians familiar with tapping speeds, feed rates, and torque limits appropriate to the workpiece material. Always use the recommended tapping fluid or cutting oil for the material being tapped, and ensure the tap is properly aligned to avoid galling or tap breakage. Secure the workpiece fully before operation, and verify spindle speed settings on CNC or tapping machine controls before engaging the tap. Do not use this tap in blind holes without confirming adequate depth clearance for chip-free cold forming.