Mte HSS E DIN 371/C Metric Hellis Machine Tap M5

Mte HSS-E DIN 371/C Metric Helical Machine Tap M5

Superior Precision and Breakage Safety in Small Diameter Blind Holes

The Mte HSS-E DIN 371/C Metric Helical Machine Tap M5 is a high-performance and special-purpose cutting tool designed for small diameter Metric Standard Thread (M) tapping operations. This tap is optimized with a Helical (Spiral) Flute, especially for use in blind holes (where there is no space at the bottom of the hole to be tapped). The M5 size refers to metric connections with a nominal diameter of 5 mm and a standard pitch of 0.8 mm.

The product's core strength comes from the HSS-E (Cobalt Alloyed High-Speed Steel) material, which offers superior cutting performance and long life even in hard and difficult-to-machine materials, and the Helical Flute structure, which safely ejects chips from the hole. The DIN 371/C standard guarantees the tap's suitability for small diameter applications from M1 to M10 and its specifications for machine use.

Product Features and Material Details

This machine tap maximizes safety by minimizing chip clogging and the risk of breakage in small diameter blind holes.

Feature Name	Detailed Description
Thread Type	Metric Standard Thread (M): M5 (5 mm diameter, 0.8 mm standard pitch). Frequently used in small assemblies and connections.
Size	M5
Standard	DIN 371/C: German standard for small diameter taps from M1-M10. 'C' form indicates suitability for machine use with single-pass tapping and a short lead taper.
Tolerance	Typically 6H tolerance. (Standard, for reliable and precise connections).
Material Type	HSS-E (Cobalt Alloyed High-Speed Steel): The contained Cobalt (5%) alloy increases resistance to high temperatures, cutting speed, and tool life. Excellent especially for stainless steels (INOX) and difficult-to-machine steels.
Flute Type	Helical (Spiral) Flute: Pushes chips upwards (outwards) from the cutting zone. This significantly reduces the risk of tap breakage in blind holes.
Recommended Pilot Hole	A pilot hole of 4.2 mm diameter is generally recommended for tapping M5 threads.

Application Areas and Sectors

The Mte M5 Helical Machine Tap is used especially in applications where small diameter, precision, and the difficulty of blind hole machining are combined:

Electronics and Precision Device Manufacturing:

Blind hole connection points in circuit board housings, sensor mounts, optical, and miniature mechanical systems.

Machinery and Automation Industry:

Tapping M5 screw connection holes in robotic systems, small fixtures, and valve bodies.

Mold and Fixture Manufacturing:

Mold and fixture parts machined as blind holes for cooling, heating, or mounting bolts.

General Metalworking:

Small diameter blind hole threading operations in difficult-to-machine materials such as stainless steels and hard aluminum.

User Information and Benefits

This product appeals to professional users seeking maximum reliability in small diameter, challenging material, and blind hole applications:

Blind Hole Breakage Safety: The helical flute structure prevents chip clogging in small diameter (M5) blind holes, effectively preventing the risk of tap breakage and increasing operational safety.

Maximum Tool Life: HSS-E (Cobalt) alloy protects the tap's cutting edges against high temperatures and provides long-lasting use even in difficult-to-machine materials.

High Surface Quality: Continuous chip evacuation prevents accumulation and scratching on the thread surface, ensuring clean and precise threads.

High Efficiency: Its suitability for machine use and excellent chip management performance enable uninterrupted operation in small diameter mass production.

Standard Compliance: The DIN standard guarantees perfect compatibility of the produced threads with international metric bolts and nuts.