Value Collection JY9037045 M4x0.5 Metric Fine Straight Flute Tap

Product Description

The VALUE COLLECTION JY9037045 is a straight flute tap designed for cutting internal metric fine threads in ferrous and non-ferrous metals. Built from high-speed steel (HSS) with a bright, uncoated finish, it cuts M4x0.5 threads to a 6H class of fit with a D4 thread limit. The bottoming chamfer geometry allows threading to the bottom of blind holes, which is a common requirement in precision fastener and close-tolerance machining work. With a 0.75-inch thread length and a 2.125-inch overall length, this tap is sized for benchtop drilling machines, CNC tapping cycles, and hand-tapping operations in machine shops and maintenance environments.

This tap is well suited for threading blind holes in components where full thread depth is required close to the bottom of the bore. Typical applications include fixture fabrication, equipment repair, and prototype machining. The M4x0.5 metric fine thread size is common in precision assemblies, instrumentation, and light mechanical hardware. Machinists, tool-and-die makers, and maintenance technicians working with metric hardware will find this a standard addition to a tap set.

Key Features

• Bottoming chamfer allows threading to the full depth of blind holes
• M4x0.5 metric fine thread profile to 6H class of fit with D4 thread limit
• 4-flute straight flute design for controlled chip formation in short-chipping materials
• High-speed steel construction provides durability across a range of common metals
• Bright uncoated finish — no coating buildup to affect thread tolerance
• Right-hand thread direction, compatible with standard tapping chucks and tap handles

Compatibility

Designed as an OEM-style replacement or standard tooling tap for M4x0.5 metric fine thread applications in manual and CNC tapping operations.

Installation Notes

This tap is installed by machinists and maintenance technicians using a standard tap handle, tapping chuck, or CNC rigid tapping cycle. Always ensure the workpiece is securely fixtured and the pilot hole diameter matches the recommended tap drill size for M4x0.5 before beginning the tapping operation. Use an appropriate cutting fluid to extend tool life and improve thread finish. When tapping blind holes with a bottoming tap, exercise care to avoid bottoming out and breaking the tap — clear chips frequently during the operation.