Kennametal 1542586 Spiral Point Tap 5/16-24 Unf Hss

Product Description

The KENNAMETAL 1542586 is a spiral point tap designed for threading operations in a wide range of metalworking and manufacturing applications. Built from high speed steel (HSS) with a bright, uncoated finish, this tap produces right-hand internal threads to the UNF 5/16-24 standard. The spiral point geometry pushes chips forward ahead of the cut rather than packing them behind, making it well suited for through-hole tapping. With a plug chamfer, 2 flutes, and an H3 thread limit, it delivers consistent Class 3B thread tolerance. Overall length is 2.72 inches and thread length is 1.125 inches.

This tap is intended for use in cast iron, ductile iron, and non-ferrous metals. It fits standard fractional-inch tap holder setups and is appropriate for both manual and machine tapping in production and maintenance environments. The Series 5301 designation places it within KENNAMETAL's catalog line of general-purpose inch taps. Typical users include machinists, toolroom technicians, and maintenance mechanics working with 5/16-24 UNF fastener threads.

Key Features

• Spiral point design pushes chips forward for clean through-hole tapping
• High speed steel construction provides durability across cast iron, ductile iron, and non-ferrous metals
• H3 thread limit holds Class 3B tolerance for precise thread fit
• Plug chamfer provides a gradual lead-in suitable for most standard tapping operations
• Bright uncoated finish with no coolant-through requirement simplifies setup
• Right-hand thread direction for standard fastener compatibility

Compatibility

Designed as an OEM-style replacement or direct drop-in tap for 5/16-24 UNF through-hole tapping applications in cast iron, ductile iron, and non-ferrous metal workpieces. No specific model or equipment compatibility was stated in the product data.

Installation Notes

This tap is installed and operated by machinists or toolroom technicians using standard tap holders or a tapping head on a drill press, CNC machine, or manual tapping arm. Always secure the workpiece and ensure the tap is properly aligned before engagement to avoid breakage. For machine tapping, verify that the spindle speed and feed rate are appropriate for the material being threaded. Follow applicable shop safety procedures and power down or lock out equipment before changing tooling.