Value Collection JY9036666 Straight Flute Tap M13x1.25

Product Description

The VALUE COLLECTION JY9036666 is a straight flute tap designed for cutting M13x1.25 metric special internal threads in ferrous and non-ferrous materials. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap provides reliable performance in general-purpose threading applications. The bottoming chamfer style allows threads to be cut close to the bottom of a blind hole, making it suitable for applications where full thread depth near the floor of a drilled hole is required. With 4 flutes and a D5 thread limit, this tap offers a balance of chip clearance and thread accuracy within the 6H class of fit tolerance.

This tap is intended for use in machine shops, maintenance facilities, and production environments where metric special thread forms are required. The M13x1.25 thread designation is a fine-pitch metric thread not found in standard metric coarse series, making this a purpose-specific tool for applications such as automotive components, fluid fittings, or precision mechanical assemblies. It is typically installed using a tapping machine, CNC machining center, or rigid tap holder by machinists and tool-and-die professionals.

Key Features

• M13x1.25 metric special thread form for non-standard fine-pitch applications
• Bottoming chamfer cuts threads to within 1-2 threads of the hole bottom in blind holes
• High-speed steel construction provides hardness and wear resistance for general threading work
• 4-flute design balances chip evacuation and thread form support
• 6H class of fit with D5 thread limit ensures consistent tolerance for standard mating fasteners
• Right-hand thread direction, bright uncoated finish — no coating buildup to affect thread tolerance

Compatibility

Designed for use in through-hole or blind-hole tapping of M13x1.25 metric special threads. Suitable for use with standard tap holders and tapping chucks configured for the tap shank diameter of this tool size.

Installation Notes

This tap is installed by machinists using rigid or floating tap holders in a drill press, tapping machine, or CNC machining center. Ensure the workpiece is securely fixtured and the pre-drilled pilot hole matches the recommended tap drill diameter for M13x1.25 threads before beginning the tapping operation. Apply appropriate cutting fluid for the workpiece material to reduce friction and extend tap life. For blind-hole applications, confirm hole depth is sufficient to accommodate both the threaded length and the bottoming chamfer runout before engaging the tap.