Value Collection MSC-04476123 Hand Tap 5/8-11 Unc

Product Description

The VALUE COLLECTION MSC-04476123 is a 5/8-11 UNC straight flute hand tap designed for cutting internal threads in through-holes and blind holes requiring a bottoming chamfer. Built from high speed steel with a bright uncoated finish, this tap produces clean right-hand threads to a 3B class of fit at an H3 thread limit. The 4-flute straight flute geometry is well suited for threading ferrous and non-ferrous materials in low to moderate production environments. Overall length is 3-13/16 inches with a thread length of 1-13/16 inches. Installation requires a tap wrench or tapping fixture and is performed by machinists, toolmakers, and maintenance mechanics.

This hand tap is used in general machining, maintenance and repair, and light production tapping operations where a bottoming chamfer is required to thread close to the bottom of a blind hole. The 5/8-11 UNC thread form is a standard coarse-pitch size found across structural fasteners, machine components, and heavy equipment applications. Suitable for bench work, drill press setups, and manual tapping operations in job shops, manufacturing facilities, and maintenance departments.

Key Features

• Bottoming chamfer allows threading to the base of blind holes
• High speed steel construction provides durability across a range of workpiece materials
• Bright uncoated finish suitable for general-purpose tapping applications
• 4-flute straight flute design for clean chip formation in short-chipping materials
• 3B class of fit and H3 thread limit for standard tolerance internal threads
• Right-hand thread direction per UNC standard

Compatibility

Designed as a standard UNC hand tap for use with conventional tap wrenches and tapping fixtures that accept 5/8-11 tooling. Compatible with general-purpose tapping applications requiring a 3B class of fit to UNC thread standards.

Installation Notes

This tap is installed by machinists or maintenance mechanics using a tap wrench or motorized tapping attachment. Ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for a 5/8-11 UNC thread before beginning. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread finish. Reverse the tap periodically to break chips and prevent binding, especially in deeper blind holes.