Kennametal 5705437 Spiral Flute Tap 10-24 Unc Modified Bottoming

Product Description

The KENNAMETAL 5705437 is a spiral flute tap designed for threading 10-24 UNC holes with a modified bottoming chamfer. It features 3 right-hand flutes with a slow flute style and a 10-degree helix angle, making it well-suited for tapping in difficult-to-machine materials. Built from powdered metal vanadium high speed steel, this tap carries a multi-layer nitride and oxide coating for extended tool life in demanding cutting conditions. The overall length is 2.375 inches, with a thread length of 0.47 inches (12 mm) and a tapping depth of 0.91 inches (23 mm). Licensed HVAC, plumbing, and mechanical technicians, as well as machinists and toolroom professionals, rely on this tap for precision thread work.

This tap is engineered for use in high-temperature alloys and nickel alloys, where tool wear resistance is critical. The modified bottoming chamfer allows threading close to the bottom of blind holes, which is a common requirement in aerospace, HVAC equipment manufacturing, and industrial maintenance applications. The H3 thread limit and 2B/3B class of fit ensure threads meet standard tolerance requirements for general-purpose and close-tolerance fastener assemblies. This is a right-hand tap with no coolant-through capability, intended for use in standard tapping operations on bench, drill press, or CNC setups.

Key Features

• 10-24 UNC thread size with H3 thread limit for consistent tolerance control
• Modified bottoming chamfer allows threading to near the bottom of blind holes
• 3 right-hand spiral flutes with 10-degree helix angle for efficient chip evacuation
• Multi-layer nitride and oxide coating extends tool life in high-temp and nickel alloys
• Powdered metal vanadium high speed steel construction for toughness and wear resistance
• Slow flute style optimized for work in difficult and gummy materials

Compatibility

Designed for tapping 10-24 UNC threads in high-temperature alloys and nickel alloys. The 2B/3B class of fit makes it suitable for standard and close-tolerance fastener applications. Part of the KENNAMETAL T692 series.

Installation Notes

Installation should be performed by qualified machinists or maintenance technicians familiar with tapping operations and cutting tool safety. Power down all equipment and secure the workpiece before beginning. Use appropriate tapping fluid or cutting oil recommended for nickel and high-temperature alloys to protect the coating and extend tool life. Do not reverse the tap under power without confirming the machine is set for reversing to avoid tap breakage.