Emuge B051C400.0040 Spiral Flute Tap M4x0.70 Bottoming 6H

Product Description

The EMUGE B051C400.0040 is a spiral flute tap designed for blind hole threading in M4x0.70 metric applications. Built from cobalt high-speed steel and finished with a GLT-1 coating, this tap handles demanding materials including stainless steel, steel, titanium alloy, and non-ferrous metals. The 45-degree helix angle and fast flute style evacuate chips efficiently in blind holes, reducing the risk of chip packing and thread damage. With a bottoming chamfer, it cuts close to the bottom of blind holes to maximize thread engagement depth. A licensed HVAC tech, machinist, or tooling professional installs this tap with a standard tap wrench or CNC tapping setup.

This tap is suited for precision blind hole threading in both manual and CNC machining environments. The 6H class of fit produces standard metric thread tolerances appropriate for general mechanical assemblies requiring reliable fastener engagement. With a tapping depth of 21.00 mm and a thread length of 7.00 mm, it is well matched to short-depth tapping operations in tight workpieces. The Enorm series from EMUGE is engineered for high-performance tapping across ferrous and non-ferrous workpiece materials where tool life and thread quality are critical requirements.

Key Features

• M4x0.70 metric thread, bottoming chamfer for threading close to the base of blind holes
• Cobalt construction provides heat and wear resistance in hard and abrasive materials
• GLT-1 coating reduces friction and extends tool life across stainless steel and titanium alloy applications
• 45-degree right-hand helix angle with fast flute style for efficient upward chip evacuation
• 6H class of fit delivers standard metric thread tolerance for general-purpose mechanical assembly
• Part of the EMUGE Enorm series, designed for high-performance blind hole tapping

Compatibility

Designed for blind hole threading in non-ferrous metal, stainless steel, steel, and titanium alloy workpieces requiring M4x0.70 metric threads at a 6H class of fit.

Installation Notes

This tap is installed by machinists or tooling professionals using a tap wrench, tapping arm, or CNC tapping cycle with appropriate spindle speed and feed rate for the workpiece material. Ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct diameter before tapping. Use a compatible cutting fluid or tapping compound appropriate for the workpiece material to protect the cutting edges and extend tool life. Do not reverse-thread or force the tap against bottomed chips - clear chips periodically during manual tapping operations.