Mte Hss E DIN 338 Drill Bit Cylindrical Shank Short Gold Series 9.5 mm
Gold Series, Maximum Performance for Demanding Materials
The Mte HSS-E DIN 338 Drill Bit (9.5 mm) Gold Series is a professional cutting tool specifically designed for high-performance drilling operations. Far superior to standard HSS (High-Speed Steel) drill bits, this product offers high speed, long life, and excellent hole quality in challenging and hard materials (especially stainless steel, alloy steels, and cast iron).
The product's strength comes from its HSS-E (Cobalt Alloy Steel) material, which has high heat resistance, and its Gold Series (TiN or similar) coating, which reduces friction and increases wear resistance. The 9.5 mm diameter is a commonly used size in general mechanical engineering and assembly operations.
Technical Specifications and Material Details
The Mte Drill Bit is optimized for high-demand industrial drilling operations.
Feature Name
Detailed Description
Diameter (Nominal)
9.5 mm
Standard
DIN 338: International German standard for twist drill bits with cylindrical shanks and standard length.
Material Type
HSS-E (Cobalt Alloyed High-Speed Steel): The included 5% Cobalt alloy (mostly M35 steel) increases resistance to high temperatures (Red Hardness). This preserves the tool's hardness even at high cutting speeds.
Surface Treatment
Gold Series (Typically TiN - Titanium Nitride): Thin, gold-colored coating. Increases surface hardness, reduces friction, and improves chip flow. This feature can increase tool life by 4-6 times.
Shank Type
Cylindrical Shank: Suitable for standard drill chucks.
Point Angle (Approximate)
Typically 135° point angle and split point geometry are used. This facilitates centering and eliminates the need for a pilot hole.
Direction of Use
Right Hand Cutting
Application Areas and Industries
This drill bit is preferred especially for drilling difficult-to-machine materials:
Aerospace and Defense Industry: Drilling in special alloy steels and high-strength materials.
Machine Manufacturing and Mold Making: Machining hardened tool steels, cast irons, and high-alloy steels.
Shipbuilding and Marine: Drilling holes in stainless steel (INOX) materials, which are essential due to their high corrosion resistance.
Automotive Industry: Drilling alloy parts in engine and exhaust systems exposed to high temperatures and pressures.
Metal Fabrication and Plumbing: Drilling general construction steels and stainless steel profiles.
User Information and Benefits
This high-performance drill bit appeals to professional users seeking efficiency, precision, and cost-effectiveness:
Stainless Steel Specialist: Thanks to its cobalt content (HSS-E), it works at high speed and with a long life even in stainless steel materials where standard HSS drills quickly dull or burn out.
Long Tool Life (TiN Effect): The gold coating (TiN) minimizes surface friction and heat generation. This significantly extends tool life and eliminates the need for frequent tool changes.
Excellent Centering: The generally used 135° split point geometry ensures accurate centering and a quick start to the hole without the need for a pilot drilling (punching) operation.
High Cutting Speed: Due to its superior temperature resistance, operators can increase productivity by using higher cutting speeds and feed rates compared to standard HSS bits.
Wide Material Compatibility: It offers superior performance not only in difficult-to-machine materials but also in standard steels, aluminum, and cast materials.
