Balax 17967-000 M4x0.70 Thread Forming Tap 6H Plug

Product Description

The BALAX 17967-000 is a thread forming tap designed for producing M4x0.70 metric coarse internal threads without cutting. Rather than removing material, this tap displaces and cold-forms the workpiece material to create a strong, chip-free thread profile. It is built from powdered metal high-speed steel with a bright, uncoated finish and carries a 6H class of fit with a D7 thread limit. The plug chamfer with 4 chamfered threads provides a balanced entry suitable for through-hole applications. Ideal for use in CNC machining centers and manual tapping operations where clean, reliable metric threads are required.

This tap is suited for through-hole threading in machinable metals where work-hardening and chip clearance are concerns. The thread forming process eliminates chips entirely, making it well-suited for blind holes where chip evacuation is difficult and for materials such as low-carbon steels, aluminum alloys, and copper alloys. The BXMP series designation indicates powdered metal high-speed steel construction, which provides improved wear resistance over conventional HSS taps in production environments. Licensed machinists, tool and die makers, and CNC operators are the primary installers.

Key Features

• Thread forming design displaces material rather than cutting, eliminating chips for cleaner through-hole threads
• Powdered metal high-speed steel construction for improved wear resistance in production runs
• 6H class of fit with D7 thread limit for standard metric tolerance requirements
• Plug chamfer with 4 chamfered threads for balanced entry and alignment
• Right-hand thread direction, M4x0.70 metric coarse pitch
• Single oil groove design supports lubrication delivery during tapping

Compatibility

Designed as a direct-fit thread forming tap for through-hole M4x0.70 metric coarse applications in standard tap holders and CNC tooling systems accepting a 0.168-inch shank diameter.

Installation Notes

Thread forming taps require a specific forming tap drill size that is larger than a standard cut tap drill - consult a forming tap drill chart for the correct pilot hole diameter before tapping. Use a suitable tapping fluid or cutting oil rated for thread forming to extend tool life and reduce forming torque. Secure the workpiece firmly and ensure the tap is driven straight to avoid cross-threading or tap breakage. This operation is typically performed by a machinist and should follow applicable shop safety procedures for rotating tooling.