Value Collection JY66556242 Straight Flute Tap 15/16-10 Uns

Product Description

The VALUE COLLECTION JY66556242 is a straight flute tap designed for cutting 15/16-10 UNS internal threads in through-holes and accessible blind-hole applications. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers reliable thread cutting performance in general-purpose machining environments. The plug chamfer provides a moderate lead of 3 to 5 threads, making it suitable for through-holes where the tap can be started and advanced smoothly. With a thread limit of H4 and a Class 3B fit, it produces threads with the tighter tolerances demanded in precision assembly work. Machinists, tool and die makers, and maintenance technicians in manufacturing and industrial settings are the primary users of this tool.

This tap is used in metalworking and machining operations requiring a 15/16-10 UNS thread form. The straight flute geometry makes it well suited for cutting threads in short-chipping materials such as cast iron, brass, and certain grades of aluminum. It is typically used in manual tapping operations or low-speed machine tapping setups. The 4-flute configuration distributes cutting load evenly and provides chip clearance adequate for most through-hole applications in production and job-shop environments.

Key Features

• 15/16-10 UNS thread form with right-hand cutting direction
• High-speed steel construction for durability across a range of workpiece materials
• Plug chamfer with 3 to 5 thread lead for smooth starting in through-holes
• Class 3B fit with H4 thread limit for precision thread tolerances
• 4-flute design distributes cutting forces and aids chip evacuation
• Bright, uncoated finish suitable for use with cutting fluids

Compatibility

Designed as a standard replacement or new-purchase straight flute tap for 15/16-10 UNS threading applications in manual and machine tapping setups compatible with HSS straight flute tooling.

Installation Notes

Tapping should be performed by a qualified machinist following appropriate shop safety procedures. Always secure the workpiece firmly before starting. Apply cutting fluid appropriate to the workpiece material to extend tool life and improve thread finish. For machine tapping, use a low spindle speed and ensure the tap holder provides adequate float to prevent tap breakage.