Osg 1651000608 Spiral Point Tap M6x0.50 Metric Fine

Product Description

The OSG 1651000608 is a spiral point tap designed for cutting right-hand internal threads to the M6x0.50 metric fine standard. Built from powdered metal (grade PMT15) and finished with a TiCN coating, this tap is engineered for high-performance threading in demanding shop environments. It features a plug chamfer, 3 flutes, a D3 thread limit, and a 6H class of fit. The spiral point geometry pushes chips forward through the hole, making it well-suited for through-hole tapping operations. Machinists and toolroom operators install this tap in CNC machining centers, drill presses, and tapping attachments.

The 1651000608 is intended for through-hole tapping across a broad range of workpiece materials. Rated material applications include alloy steel, aluminum, cast aluminum, cast iron, hardened steel, high-carbon steel, low-carbon steel, medium-carbon steel, stainless steel, and die steel. The fine 0.50 mm pitch suits applications where thread engagement length is limited or where vibration resistance and fine adjustment are priorities, such as precision mechanical assemblies and instrument-grade components. It belongs to OSG Series 16510 and is positioned as a high-performance spiral point tool.

Key Features

• M6x0.50 metric fine thread, 6H class of fit with D3 thread limit for controlled tolerance
• Powdered metal (PMT15) substrate provides wear resistance and toughness over standard HSS
• TiCN coating reduces friction and extends tool life in ferrous and non-ferrous materials
• Plug chamfer (3-5 thread lead) for through-hole applications with gradual thread engagement
• 3-flute spiral point geometry pushes chips forward, reducing chip packing in through holes
• Right-hand thread direction; no coolant-through feature required for most general applications

Compatibility

Designed as an OEM-style threading tool for through-hole tapping operations requiring M6x0.50 metric fine threads across ferrous and non-ferrous workpiece materials, as listed under OSG Series 16510.

Installation Notes

This tap is installed and operated by machinists or toolroom technicians using a standard tapping chuck, CNC rigid tapping cycle, or tapping attachment rated for the shank diameter. Ensure the tap is aligned perpendicular to the workpiece surface before engagement to prevent thread lead errors or tap breakage. Use a cutting fluid or tapping oil appropriate for the workpiece material, particularly when tapping stainless steel or hardened steel. Follow machine manufacturer feed-rate and spindle-speed guidelines for the specific material and tap size.