Value Collection JY4847125 Hand Tap 3/4-14 Uns Bottoming Hss

Product Description

The VALUE COLLECTION JY4847125 is a 3/4-14 bottoming hand tap designed for cutting internal threads in through-holes and blind holes where threads must extend close to the bottom. Manufactured from high speed steel (HSS) with a bright, uncoated finish, this tap delivers consistent cutting performance across a range of ferrous and non-ferrous workpiece materials. The 4-flute straight flute geometry provides good chip control and thread form accuracy. It cuts right-hand threads to the UNS thread standard at a 3B class of fit with an H3 thread limit, making it suitable for general-purpose threaded fastener applications requiring moderate tolerances.

This tap is suited for use in machine shops, maintenance and repair operations, and production environments where 3/4-14 UNS threaded holes are required. The bottoming chamfer — typically 1 to 2 threads — allows threading to within a short distance of the hole bottom, a common requirement in fixture fabrication, pipe fitting adapters, and hydraulic or pneumatic manifold work. It is typically used by machinists and toolmakers working with drill presses, tapping arms, or hand-tapping setups.

Key Features

• Bottoming chamfer for threading close to the bottom of blind holes
• High speed steel construction for durability across a range of materials
• Bright, uncoated finish — suitable for use with cutting fluid in most standard applications
• 4-flute straight flute design for stable thread form and chip evacuation
• H3 thread limit and 3B class of fit for general-purpose tolerance requirements
• Right-hand cut, UNS thread standard at 3/4-14 size

Compatibility

Designed as a standard replacement or supplemental bottoming tap for 3/4-14 UNS tapping applications in machine shop, MRO, and production environments.

Installation Notes

Bottoming taps are typically the final tap used in a three-tap sequence — after a taper and plug tap have established the thread — though they may be used alone in through-hole applications. Always apply appropriate cutting fluid for the workpiece material to reduce heat buildup and extend tap life. Secure the workpiece firmly before tapping and maintain proper axial alignment to avoid tap breakage. Replace or recondition the tap if cutting torque increases noticeably or thread form quality degrades.