Value Collection JY4838488 Straight Flute Tap 10-56 Uns

Product Description

The VALUE COLLECTION JY4838488 is a straight flute bottoming tap designed for cutting internal threads in pre-drilled holes where threads must extend close to the bottom of a blind bore. Manufactured from high-speed steel with a bright, uncoated finish, this tap produces 10-56 UNS right-hand threads at a 3B class of fit, which suits standard tolerance internal thread applications. With 4 flutes and an H2 thread limit, it delivers controlled material removal and reliable thread form. Overall length is 2.375 inches. Licensed machinists and tool-and-die technicians are the typical users.

This tap is suited for threading operations in light metals, mild steel, and similar machinable materials where a 10-56 UNS thread form is required. The bottoming chamfer — approximately 1 to 2 thread leads — allows threading to within a minimal distance from the bottom of a blind hole, making it the correct choice when a plug or taper tap has already started the thread and a full-depth finish pass is needed. It fits standard tap holders and driver handles compatible with the shank size appropriate for a No. 10 series tap.

Key Features

• Bottoming chamfer for threading close to the bottom of blind holes
• 10-56 UNS thread form with right-hand thread direction
• 4 flutes for balanced cutting and chip management
• H2 thread limit for standard 3B class of fit tolerances
• High-speed steel construction for durability across a range of machinable materials
• Bright, uncoated finish — no coating buildup to affect thread tolerance

Compatibility

Designed as an OEM-style replacement or direct-use straight flute bottoming tap for applications requiring a 10-56 UNS internal thread at a 3B class of fit.

Installation Notes

Installation requires a properly sized and drilled tap drill hole prior to use; consult a standard tap drill chart for the correct drill size for a 10-56 UNS thread. Power down or disengage any machine spindle before loading or unloading the tap. Use appropriate cutting fluid to extend tap life and improve thread finish. Follow applicable shop safety and machining standards when operating tapping equipment.