Value Collection JY4845194 Hand Tap 9/16-20 Uns Plug Rh

Product Description

The VALUE COLLECTION JY4845194 is a 9/16-20 straight flute hand tap designed for cutting internal threads in a wide range of metalworking and maintenance applications. Built from bright-finish high speed steel, this tap delivers durable cutting performance without a coating, making it easy to inspect for wear. The plug chamfer — typically 3 to 5 threads — allows the tap to start in a through-hole or a pre-started hole with moderate torque. With an H3 thread limit and a Class 3B fit designation, it produces tight-tolerance threads suited to precision assemblies. The overall length is 3-19/32 inches.

This tap is used in general machining, maintenance, and repair operations where UNS 9/16-20 internal threads are required. The 4-flute straight flute design works best in through-holes and shallow blind holes in steel, cast iron, aluminum, and similar materials. It is typically driven by a tap wrench or machine tapping head at slow speeds with appropriate cutting fluid. Machinists, tool and die workers, and maintenance technicians are the primary users.

Key Features

• 9/16-20 UNS thread form with right-hand cutting direction
• Plug chamfer for use in through-holes or pre-started blind holes
• H3 thread limit and Class 3B fit for close-tolerance thread production
• 4-flute straight flute geometry suited to through-holes and shallow blind holes
• Bright uncoated high speed steel construction — no coating to obscure wear
• 3-19/32 inches overall length provides adequate shank for standard tap wrenches

Compatibility

Designed as an OEM-style replacement or standard hand tap for any application requiring a 9/16-20 UNS right-hand internal thread with a Class 3B fit.

Installation Notes

Hand taps should be installed by a qualified machinist or maintenance technician using a properly sized tap wrench or machine holder. Always secure the workpiece firmly and align the tap square to the hole axis before applying torque. Use a compatible cutting fluid appropriate to the workpiece material to extend tap life and improve thread finish. Back the tap off a partial turn periodically to break chips and prevent tap breakage.