Value Collection JY74527417 Straight Flute Tap M30x3.5

Product Description

The VALUE COLLECTION JY74527417 is a straight flute tap designed for cutting M30x3.5 metric coarse internal threads in through-holes and open-ended blind holes. Made from high-speed steel (HSS) with a bright uncoated finish, this tap delivers reliable performance in ferrous and non-ferrous metals. It features a plug chamfer, which provides a moderate lead-in of approximately 3 to 5 threads, making it the standard choice for most general-purpose tapping operations. The 6H class of fit produces threads within the standard tolerance range required for metric fastener assemblies. With a D9 thread limit and 4 flutes, this tap removes chips efficiently in a range of shop and field applications. It is sized for use with appropriately rated tap handles or machine tapping setups.

This tap is intended for use in metalworking applications requiring M30x3.5 metric coarse threads, a large-diameter thread commonly found in heavy machinery, structural fasteners, and industrial equipment. The plug chamfer style makes it suitable for both hand tapping and machine tapping in through-hole applications. Machinists, tool and die makers, and maintenance technicians working on heavy equipment fabrication or repair will find this tap appropriate for production and maintenance work requiring a 6H tolerance class.

Key Features

• M30x3.5 metric coarse thread form for large-diameter internal thread cutting
• Plug chamfer with moderate lead-in for general-purpose through-hole tapping
• High-speed steel construction for durability across a range of workpiece materials
• 4-flute design promotes efficient chip evacuation during tapping
• 6H class of fit meets standard metric thread tolerance requirements
• D9 thread limit for consistent fit with standard metric fasteners
• Right-hand thread direction, compatible with standard tap handles and tapping heads

Compatibility

Designed as a general-purpose replacement or production tap for applications requiring M30x3.5 metric coarse internal threads at a 6H class of fit. Suitable for use with standard tap wrenches and machine tapping setups sized for the 1.021-inch shank diameter.

Installation Notes

This tap should be installed and operated by a qualified machinist familiar with hand and machine tapping procedures. Always secure the workpiece and ensure proper alignment before beginning the tapping operation to prevent tap breakage. Apply appropriate cutting fluid for the workpiece material and back the tap off periodically to break and clear chips. Do not exceed the torque capacity of the tap or the tapping tool being used.