Osg 2890808 Spiral Point Tap M5x0.80 3 Flute Ticn

Product Description

The OSG 2890808 is a spiral point tap designed for threading M5x0.80 holes in a wide range of ferrous and non-ferrous materials. Built from vanadium high-speed steel (HSS-E) and finished with a titanium carbonitride (TiCN) coating, this tap offers improved wear resistance and reduced friction compared to uncoated alternatives. It features a plug chamfer style with 3 flutes and a D4 thread limit, conforming to a 6H class of fit. Right-hand thread direction and a 7/8-inch thread length make it suitable for through-hole and shallow blind-hole applications. Machinists and toolroom technicians typically use this tap in manual or CNC tapping operations.

The OSG 2890808 is suited for threading operations across a broad material range including aluminum, low-carbon steel, medium-carbon steel, high-carbon steel, alloy steel, die steel, stainless steel, and cast iron. Its TiCN coating performs well in abrasive materials where uncoated taps wear prematurely. The spiral point geometry pushes chips forward ahead of the tap, making it best suited for through-hole applications where chip evacuation is straightforward. It is commonly used in production machining, job shop work, and maintenance environments.

Key Features

• M5x0.80 thread size with 6H class of fit and D4 thread limit for precise tolerance control
• TiCN coating increases surface hardness and extends tool life in abrasive and hard materials
• Vanadium high-speed steel (HSS-E) construction resists wear and heat during tapping
• Plug chamfer distributes cutting load across multiple leading threads for smooth entry
• 3-flute spiral point design pushes chips forward, optimized for through-hole applications
• Right-hand thread direction; no coolant-through requirement simplifies setup

Compatibility

Designed as an OEM-style spiral point tap for M5x0.80 threading applications in ferrous and non-ferrous workpiece materials including aluminum, stainless steel, cast iron, and carbon and alloy steels. Part of OSG Series 289.

Installation Notes

This tap is installed and operated by machinists or toolroom technicians using a tap wrench, tapping head, or CNC machine spindle. Ensure the workpiece is securely fixtured and the pilot hole diameter is correct for M5x0.80 before tapping. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Do not reverse the tap under power without a reversing-capable tapping attachment, as doing so may cause tap breakage.