Osg 22837 Straight Flute Tap M12x1.75 Solid Carbide

Product Description

The OSG 22837 is a solid carbide straight flute tap designed for machine tapping of M12x1.75 metric coarse threads. It features a bottoming chamfer, making it the right choice when threads must run close to the bottom of a blind hole. With 4 flutes and a bright uncoated finish, this tap is built for precision threading operations where tight tolerances and clean thread form are required. It carries an H5 thread limit, indicating a close-tolerance fit appropriate for precision assemblies. Licensed machinists and tooling technicians are the typical end users for this type of ground carbide tap.

This tap is suited for production and job-shop environments where metric coarse threading is performed on aluminum, cast aluminum, and cast iron workpieces. The straight flute design works best in these shorter-chipping materials, where chip evacuation is not a significant concern. It is appropriate for use in CNC machining centers and rigid tapping setups where controlled feed rates and spindle synchronization are available. The bottoming chamfer style makes it particularly well-suited for through-to-bottom blind hole applications requiring full thread depth.

Key Features

• Bottoming chamfer for threading close to the bottom of blind holes
• Solid carbide construction for rigidity and wear resistance in abrasive materials
• H5 thread limit for close-tolerance metric coarse thread production
• 4-flute straight flute geometry optimized for short-chipping materials such as aluminum and cast iron
• Bright uncoated finish compatible with a wide range of cutting fluids
• Right-hand thread direction, M12x1.75 metric coarse standard

Compatibility

Designed for tapping M12x1.75 metric coarse threads in aluminum, cast aluminum, and cast iron. Part of OSG Series 349. Coolant-through is not supported on this tool.

Installation Notes

This tap should be installed in a rigid tapping holder or synchronized tap chuck appropriate for the machine spindle in use. Ensure the workpiece is securely fixtured and the hole is drilled to the correct tap drill diameter for M12x1.75 before tapping. Apply an appropriate cutting fluid for the workpiece material. Inspect the tap for wear or chipping regularly, as solid carbide tools can fracture if mishandled or run at incorrect feed-to-speed ratios.