Hertel K010458AS85 Thread Forming Tap M8x1.25 Ticn

Product Description

The HERTEL K010458AS85 is a metric thread forming tap designed to produce M8x1.25 internal threads in through-hole applications without cutting chips. It is manufactured from high-speed steel and coated with TiCN (titanium carbonitride) for increased surface hardness and wear resistance. The plug chamfer (3-5 chamfered threads) provides progressive thread engagement suited to through-hole work. With an overall length of 2.7188 inches and a thread length of 1.125 inches, this tap is sized for standard machine tapping operations in metalworking environments. It is installed by machinists and tool and die technicians using CNC machining centers, drill presses, or tapping machines.

This tap is intended for through-hole threading in metric applications at M8x1.25. The D9 thread limit designates the tolerance class appropriate for general-purpose metric threading with allowance for plating or close-fit fastener assemblies. The right-hand thread direction and plug chamfer make it well suited for production environments where consistent thread form and tool life are priorities. The TiCN coating extends tool life in ferrous and non-ferrous materials compared to uncoated high-speed steel alternatives.

Key Features

• Thread size M8x1.25, right-hand, metric standard
• Plug chamfer with 3-5 chamfered threads for progressive through-hole engagement
• High-speed steel construction with TiCN coating for enhanced wear resistance
• D9 thread limit for general-purpose metric tolerance class
• No coolant-through design; suitable for standard tapping setups
• Shank diameter of 0.3180 inches with a square drive size of 0.2380 inches

Compatibility

Designed as an OEM-style thread forming tap for metric through-hole applications requiring M8x1.25 right-hand threads in production or maintenance machining operations.

Installation Notes

This tap should be installed in a rigid tapping holder or floating tap holder appropriate for the shank and square drive dimensions. Power down or de-energize the machine before changing tooling. Use the correct tapping fluid or cutting oil for the workpiece material to protect the coating and extend tool life. Always verify spindle speed and feed rate match the tap manufacturer guidelines for the workpiece material before running.