Value Collection JY4991550 M4x0.75 Straight Flute Tap Hss

Product Description

The VALUE COLLECTION JY4991550 is a straight flute tap designed for cutting M4x0.75 metric special internal threads in a range of materials. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap delivers reliable thread form in through-hole and blind-hole applications where straight chip evacuation is appropriate. The plug chamfer configuration provides 3 to 5 chamfered threads at the lead, making it suitable for through-hole threading as well as moderately deep blind holes. With an overall length of 2.125 inches and a thread length of 0.75 inches, this tap is sized for benchtop and CNC tapping operations in machine shops, maintenance environments, and precision assembly work.

This tap is intended for metric special M4x0.75 threading applications in ferrous and non-ferrous metals, plastics, and similar machinable materials. The 4-flute straight design provides good cutting stability and surface finish in these applications. The right-hand thread direction and D4 thread limit make it a practical choice for standard production tapping and repair work. Machinists, tool-and-die technicians, and maintenance professionals will find this tap suited to general-purpose tapping on drill presses, CNC machining centers, and hand-tapping fixtures where coolant-through tooling is not required.

Key Features

• M4x0.75 metric special thread form with right-hand direction
• 4 straight flutes for cutting stability and consistent chip management
• Plug chamfer lead for use in through-holes and moderately deep blind holes
• High-speed steel construction for durability across a range of workpiece materials
• D4 thread limit for standard tolerance threading
• No coolant-through requirement — compatible with conventional tapping setups

Compatibility

Designed as a standard OEM-style replacement or new-installation tap for M4x0.75 metric special thread applications on drill presses, CNC machining centers, and manual tapping fixtures that accept straight shank taps.

Installation Notes

This tap is installed and operated by machinists and tooling technicians. Ensure the workpiece is securely fixtured and the tap is properly aligned with the pilot hole before beginning the threading operation. Use an appropriate tapping fluid or cutting oil for the workpiece material to extend tool life and improve thread quality. Inspect the tap for wear or chipping before each use and replace if the cutting edges show signs of deterioration.