Osg 2893601 Spiral Point Tap M20x2.50 Metric Coarse

Product Description

The OSG 2893601 is a spiral point tap designed for cutting M20x2.50 metric coarse internal threads in through-hole applications. Manufactured from vanadium high speed steel with an oxide finish, it delivers durability and heat resistance across a range of ferrous and non-ferrous materials. The 3-flute geometry and spiral point design push chips forward ahead of the tap, reducing clogging and improving thread quality in production environments. With a plug chamfer, the tap gradually engages the workpiece for controlled cutting action. Overall length is 4-15/32 inches, thread length is 2 inches, and shank diameter is 0.652 inches. The D8 thread limit suits general-purpose tolerance requirements. This tap is specified by machinists, toolmakers, and maintenance professionals handling metric threading jobs.

This tap is suited for through-hole threading operations in machine shop, manufacturing, and industrial maintenance settings. The M20x2.50 metric coarse specification makes it a common choice for structural fastener applications, heavy equipment repair, and general fabrication work where standard metric threads are required. The spiral point design is particularly effective in CNC tapping centers and drill press applications where chip evacuation is a priority. Right-hand thread cutting matches the overwhelming majority of standard metric fastener applications.

Key Features

• M20x2.50 metric coarse thread form with plug chamfer for gradual thread engagement
• 3-flute spiral point geometry pushes chips forward, reducing packing in through-hole applications
• Vanadium high speed steel construction for improved wear resistance and toughness
• Oxide finish provides mild lubricity and corrosion resistance during cutting
• D8 thread limit for general-purpose metric thread tolerance control
• Right-hand cut matches standard metric fastener orientation

Compatibility

Designed for through-hole tapping of M20x2.50 metric coarse threads in materials compatible with high speed steel tooling, including mild steel, alloy steel, aluminum, and similar workpiece materials.

Installation Notes

This tap should be installed and operated by a qualified machinist familiar with tapping speeds, feeds, and lubrication requirements for the workpiece material. Always secure the workpiece and ensure proper alignment before tapping to avoid tap breakage. Use appropriate cutting fluid for the material being threaded, and power down or disengage the machine before changing tooling. Follow shop safety protocols and machine manufacturer guidelines when operating tapping equipment.