Value Collection MSC-04531182 Spiral Point Tap 5/16-18

Product Description

The VALUE COLLECTION MSC-04531182 is a spiral point tap designed for cutting internal threads in through-holes. It features a 5/16-18 UNC thread form with a plug chamfer, which distributes cutting load across the first several threads and suits most standard through-hole tapping applications. Manufactured from high speed steel (HSS) with a bright, uncoated finish, this tap handles a wide range of ferrous and non-ferrous materials at moderate cutting speeds. The H2 thread limit provides a close tolerance fit commonly required in production and maintenance threading work. Installation is performed by machinists, maintenance technicians, and tool-room professionals.

This tap is suited for through-hole tapping in general metalworking, machine maintenance, and fabrication environments. The plug chamfer makes it appropriate for starting a thread from an open hole, not blind holes requiring a bottoming tap. With a 1-inch thread length and right-hand cut, it covers the threading depth needed for most standard fastener applications in steel, aluminum, cast iron, and similar workpiece materials. It is sold individually and is compatible with standard tap handles, T-handle wrenches, and CNC or manual tapping fixtures that accept the corresponding shank size.

Key Features

• 5/16-18 UNC thread form for standard unified coarse-thread applications
• Plug chamfer distributes cutting load and allows easy thread starting in through-holes
• High speed steel construction provides good wear resistance across common metals
• H2 thread limit ensures close tolerance thread production
• Right-hand cut, 2-flute design for efficient chip evacuation in through-hole applications
• Bright, uncoated finish suitable for use with cutting fluid in a variety of materials

Compatibility

Designed as a standard replacement or stock tap for 5/16-18 UNC through-hole tapping operations in general metalworking and maintenance applications.

Installation Notes

This tap should be installed and used by qualified machinists or maintenance technicians familiar with threading operations. Always secure the workpiece and ensure the tap is properly aligned before applying torque to avoid tap breakage. Use an appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Replace worn taps promptly, as a dull tap significantly increases the risk of breakage in the hole.