Value Collection MSC-04546115 Spiral Point Tap 5/8-11

Product Description

The VALUE COLLECTION MSC-04546115 is a spiral point tap designed for cutting internal threads in through-hole applications. Built from high speed steel (HSS) with a bright uncoated finish, this plug-chamfer tap drives chips forward ahead of the cut, making it well suited for threading in materials where chip evacuation through the back of the hole is not an option. It cuts a 5/8-11 UNC thread profile to a 3B class of fit, with a thread length of 1.8125 inches and a H3 thread limit for consistent tolerance control. Licensed machinists, tool and die makers, and maintenance technicians use this tap in manual or CNC tapping operations.

This tap is intended for right-hand, through-hole threading in ferrous and non-ferrous metals at the 5/8-11 UNC thread size. Its 3-flute spiral point geometry channels chips forward, reducing the risk of chip packing in production or job-shop environments. The plug chamfer provides a gradual lead-in, making it a standard choice for general-purpose tapping where the tap can run completely through the workpiece. It is suitable for use in drill press, turret lathe, CNC machining center, and hand tapping setups.

Key Features

• 5/8-11 UNC thread form to 3B class of fit for standard dimensional accuracy
• H3 thread limit for controlled tolerance in general-purpose threading
• 3-flute spiral point geometry pushes chips forward through the hole
• Plug chamfer provides a gradual lead-in for through-hole applications
• High speed steel construction for durability across common workpiece materials
• Bright uncoated finish suitable for use with cutting fluid in a variety of materials
• Right-hand thread direction for standard tapping orientation

Compatibility

Designed as a general-purpose replacement or stock tap for 5/8-11 UNC through-hole threading operations. Compatible with standard tap holders and chucks accepting the corresponding shank size for this tap class.

Installation Notes

A licensed machinist or qualified technician should install and operate taps in accordance with applicable shop safety and machine tool standards. Ensure the workpiece is securely fixtured and the pilot hole is drilled and chamfered to the correct diameter for 5/8-11 UNC before tapping. Use an appropriate cutting fluid for the workpiece material to extend tool life and improve thread finish. Reverse the tap periodically when hand tapping to break chips, and never force a tap against resistance to avoid breakage.