Osg 1975600 Straight Flute Tap M16x1.50 Metric Fine

Product Description

The OSG 1975600 is a straight flute bottoming tap designed for cutting M16x1.50 metric fine internal threads in a range of ferrous and non-ferrous materials. Manufactured from high-speed steel with a bright/uncoated finish, it features 4 flutes and a bottoming chamfer that allows threading close to the bottom of a blind hole. The overall length is 3.813 inches with a thread length of 1.813 inches and a shank diameter of 0.4800 inches. Thread direction is right hand with a D6 thread limit. This tap is part of OSG Series 141 and is sold individually.

This tap is suited for threading blind holes in production and maintenance machining environments where metric fine threads are required. Its bottoming chamfer makes it the finishing tap in a tapping sequence after a taper or plug tap has started the thread. It is appropriate for use in manual, semi-automatic, or CNC tapping operations on lathes, drill presses, and machining centers. Machinists, toolmakers, and maintenance technicians working with metric-fastened assemblies will find this tap well matched to precision threading tasks.

Key Features

• Bottoming chamfer allows threading to within 1-2 threads of a blind hole bottom
• M16x1.50 metric fine thread form for applications requiring finer pitch than coarse standard
• 4-flute design provides chip control and thread surface quality across supported materials
• High-speed steel construction maintains edge integrity in steel, cast iron, and aluminum
• D6 thread limit for consistent tolerance control in precision assemblies
• Bright/uncoated finish suitable for use with cutting fluids on a wide range of workpiece materials

Compatibility

Rated for use in aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel workpieces. Designed as an OEM-style straight flute bottoming tap for M16x1.50 metric fine thread applications in OSG Series 141.

Installation Notes

This tap should be installed and operated by a qualified machinist or toolmaker. Always secure the workpiece and ensure proper alignment before tapping to avoid tap breakage. Power down or disengage the spindle before changing tooling. Use an appropriate cutting fluid for the workpiece material to extend tool life and improve thread finish. Follow all applicable shop safety procedures and manufacturer torque guidelines for the tapping setup.