Value Collection JY4747101 3/4-10 Unc Straight Flute Tap Hss

Product Description

The VALUE COLLECTION JY4747101 is a straight flute tap designed for cutting 3/4-10 UNC internal threads in through-hole and open-blind applications. Machined from high-speed steel (HSS) with a bright, uncoated finish, this tap is suited for general-purpose threading in a range of ferrous and non-ferrous materials. It features a plug chamfer, which distributes cutting load over several leading threads for a controlled start and smooth threading action. With 4 flutes and an H11 thread limit, it produces threads at a controlled oversize of 0.0050 inches, accommodating standard tolerance class fits. Overall length is 4.25 inches. Machinists, toolroom technicians, and maintenance professionals are the primary users.

This tap is intended for right-hand threading operations in through-holes or blind holes with adequate chip clearance. The plug chamfer style makes it a practical choice for production threading and repair work on machine components, fixtures, and structural assemblies. The 3/4-10 UNC thread form is a coarse-pitch designation commonly encountered in structural bolting, heavy equipment, and general mechanical assemblies. This tap is appropriate for use in manual tapping, drill press, and CNC tapping operations where straight-flute geometry is specified.

Key Features

• 3/4-10 UNC thread form, right-hand cut, plug chamfer for controlled thread engagement
• High-speed steel construction for durability across a range of workpiece materials
• 4 straight flutes provide chip clearance in through-hole and open applications
• H11 thread limit with 0.0050 inches oversize for controlled fit tolerance
• Bright, uncoated finish — ready to use as received or suitable for post-treatment
• 4.25 inches overall length accommodates standard tapping chuck setups

Compatibility

Designed as a standard replacement or stock tap for 3/4-10 UNC threading applications in manual, drill press, and CNC tapping setups requiring straight-flute geometry and H11 thread limit.

Installation Notes

This tap should be installed by a qualified machinist or toolroom technician familiar with tapping operations and thread standards. Always secure the workpiece and ensure the tap is properly aligned with the hole axis before beginning the cut. Use an appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Inspect the tap for wear or chipping before each use and do not force a damaged tap, as breakage in the bore can require costly extraction.