Osg 2412103 Straight Flute Tap M12x1.75 Plug 6H Nitride

Product Description

The OSG 2412103 is a straight flute machine tap designed for cutting M12x1.75 metric coarse internal threads in production and maintenance machining environments. Built from vanadium high-speed steel with a nitride coating, this tap delivers good wear resistance and consistent thread quality across repeated use. It features a plug chamfer, 4 flutes, a 6H class of fit, and a D6 thread limit, making it well suited for through-hole and moderate-depth blind-hole threading where chip evacuation is manageable with straight flute geometry. Overall length is 3.375 inches with a thread length of 1.656 inches. Right-hand thread direction. Installation is performed by machinists and tool-and-die tradespeople using tapping machines, CNC machining centers, or manual tap handles.

The OSG 2412103 is intended for aluminum and cast iron workpieces in general metalworking applications. The straight flute design performs best in through-hole or shallow blind-hole scenarios where chips can fall away freely. The nitride surface treatment reduces galling and improves tool life in abrasive materials. This tap is part of OSG Series 241 and is packaged individually as a single-piece unit.

Key Features

• M12x1.75 metric coarse thread form with 6H class of fit and D6 thread limit
• Plug chamfer provides a gradual lead-in for through-hole and moderate blind-hole threading
• 4 straight flutes allow chip fallout in through-hole applications on aluminum and cast iron
• Vanadium high-speed steel construction for improved toughness and wear resistance over standard HSS
• Nitride coating reduces friction and extends tool life in abrasive workpiece materials
• Right-hand thread direction; no coolant-through feature required for standard tapping operations

Compatibility

Rated for use in aluminum and cast iron workpieces. Fits standard tap holders and collet chucks accepting a 0.367-inch shank diameter. Part of OSG Series 241.

Installation Notes

This tap is installed by machinists using a tapping attachment, CNC rigid tapping cycle, or hand tap wrench. Always ensure the tap is properly aligned with the pilot hole before engagement to avoid tap breakage. Use a cutting fluid or tapping compound appropriate for the workpiece material. Inspect the tap for wear or chipping before each use and replace when thread quality degrades.