Value Collection JY4861209 Hand Tap 1-1/16-16 Uns Hss

Product Description

The VALUE COLLECTION JY4861209 is a 1-1/16-16 UNS straight flute hand tap designed for threading operations in metalworking and industrial maintenance applications. Built from high speed steel (HSS) with a bright, uncoated finish, this plug chamfer tap cuts right-hand internal threads to a 3B class of fit with an H4 thread limit. The 4-flute straight flute geometry provides balanced cutting action and reliable chip clearance in through-hole and open-setup tapping. Overall length is 4 inches. This tap is suited for machinists, maintenance technicians, and tool-and-die professionals working with UNS thread forms.

This tap is used in job shop machining, industrial maintenance, and repair operations where 1-1/16-16 UNS internal threads are required. The plug chamfer — typically 3 to 5 threads of lead — makes it the standard choice for starting in a hole that has been drilled through, or for chasing existing threads. It is compatible with standard tap wrenches and machine tap holders. Applications span ferrous and non-ferrous materials in both production and one-off repair environments where UNS thread forms are specified.

Key Features

• 1-1/16-16 UNS thread form, right-hand cut
• Plug chamfer geometry — suitable for through-hole tapping and thread chasing
• H4 thread limit maintains 3B class of fit tolerance
• 4-flute straight flute design for balanced cutting and chip flow
• High speed steel construction for durability across a range of workpiece materials
• Bright, uncoated finish — no coating buildup to affect thread tolerance

Compatibility

Designed as an OEM-style replacement or direct-use hand tap for applications requiring 1-1/16-16 UNS internal threads at a 3B class of fit with H4 thread limit.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians using a standard tap wrench or machine holder. Ensure the workpiece is securely fixtured and the pilot hole diameter is correct for the specified thread form and class of fit before tapping. Apply appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Never force the tap against an undersized hole or reverse direction aggressively, as this can cause tap breakage.