Value Collection JY4838470 Straight Flute Tap 10-56 Uns

Product Description

The VALUE COLLECTION JY4838470 is a straight flute tap designed to cut 10-56 UNS internal threads in a wide range of metalworking and maintenance applications. This plug-chamfer tap features four flutes ground from high-speed steel and carries an H2 thread limit with a 3B class of fit, making it suitable for producing threads that meet standard tolerance requirements. The bright, uncoated finish means the steel is left without any additional surface treatment, which works well in general-purpose tapping operations where cutting fluids provide sufficient lubrication. The 2.375-inch overall length gives machinists and technicians adequate reach for through-holes and shallow blind holes in typical workpieces.

This tap is used in machine shops, maintenance facilities, and production environments where 10-56 UNS threads are required. The plug chamfer — typically 3 to 5 threads of lead — makes it the standard choice for through-hole tapping and for starting threads in blind holes when a bottoming tap will finish the job. It is appropriate for use in ferrous and non-ferrous metals, including mild steel, aluminum, and brass, when paired with proper cutting lubricant. Machinists, tool-and-die technicians, and maintenance mechanics are the primary users of this size and style.

Key Features

• 10-56 UNS thread form with right-hand thread direction
• Plug chamfer provides a guided lead-in for through-hole and open blind-hole tapping
• H2 thread limit and 3B class of fit for standard tolerance internal threads
• Four straight flutes for chip evacuation in a wide range of materials
• High-speed steel construction offers durability in general-purpose tapping
• Bright, uncoated finish — no additional surface treatment applied

Compatibility

Designed as a standard replacement or stock tap for any application requiring a 10-56 UNS, 3B class of fit, plug-chamfer straight flute tap in high-speed steel.

Installation Notes

This tap is installed using a standard tap wrench, tapping head, or machine spindle rated for the appropriate torque range for the thread size. Always secure the workpiece firmly and ensure the tap is started square to the hole to avoid tap breakage. Apply an appropriate cutting lubricant for the material being tapped. Coolant-through is not supported on this tap, so flood or brush-applied cutting fluid should be used for extended production runs.