Value Collection JY4873154 Hand Tap 1-7/16-16 Uns

Product Description

The VALUE COLLECTION JY4873154 is a bottoming hand tap designed to cut full threads to the bottom of blind holes. Manufactured from high speed steel with a bright, uncoated finish, this tap handles the demands of manual threading operations in a shop or field setting. It is configured for 1-7/16-16 UNS threads, right-hand direction, with a 3B class of fit and an H4 thread limit. Six straight flutes provide adequate chip clearance during tapping. Overall length is 4 inches. Machinists, tool and die makers, and maintenance technicians use this tap to chase or cut internal threads where a through-hole configuration is not possible.

This tap is suited for threading operations that require thread engagement at or near the bottom of a blind hole. The bottoming chamfer — typically 1 to 2 threads of lead — makes it the final step in a tap sequence after a taper or plug tap has started the thread. It is appropriate for use in a range of base materials and is typically employed in maintenance, repair, and production environments where UNS thread standards are specified.

Key Features

• Bottoming chamfer allows full thread cutting to the bottom of blind holes
• 1-7/16-16 UNS thread form, right-hand direction
• High speed steel construction for durability in manual tapping applications
• Bright, uncoated finish suitable for general-purpose use
• 6 straight flutes for consistent chip management
• 3B class of fit with H4 thread limit for standard tolerance threading

Compatibility

Designed for use in standard manual tapping operations requiring 1-7/16-16 UNS internal threads with a 3B class of fit. Intended for use with a matching tap wrench or holder sized for the tap shank.

Installation Notes

This tap is installed by machinists or maintenance technicians using a tap wrench or appropriate holding fixture. Always complete the tapping sequence with a taper or plug tap before introducing a bottoming tap into the hole. Apply cutting fluid appropriate for the workpiece material throughout the operation. Back the tap out regularly to break and clear chips and avoid tap breakage in blind holes.