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MTE HSS-E DIN 338 Drill Bit Cylindrical Shank Short Gold Series 6.5 mm

MTE HSS-E DIN 338 Drill Bit Cylindrical Shank Short Gold Series 6.5 mm

SKU ÜRÜN KODU: ÜRÜN KODU:B00005000650

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Mte HSS-E DIN 338 Drill Bit Cylindrical Shank Short Gold Series 6.5 mm

Gold Series, The Ideal Solution for M8 Pre-Drilling and Critical Drilling in Difficult Materials

The Mte HSS-E DIN 338 Drill Bit (6.5 mm) Gold Series is a high-performance cutting tool designed for professional and industrial drilling operations. This drill bit is optimized to deliver exceptional performance and longevity, especially in hard-to-machine materials such as stainless steels (INOX), hardened steels, and high-alloy cast materials. Its 6.5 mm diameter is critically important as it is the standard pre-drilling diameter for M8 metric threads.

The superiority of the product comes from its high-temperature resistant HSS-E (Cobalt Alloy High-Speed Steel) material and its Gold Series (TiN or similar) coating, which reduces friction and extends tool life.

Technical Specifications and Material Details

The Mte Drill Bit is manufactured to high standards for use in demanding working conditions.

Feature Name

Detailed Description

Diameter (Nominal)

6.5 mm

Standard

DIN 338: International German standard for spiral drill bits with cylindrical shanks and standard short length.

Material Type

HSS-E (Cobalt Alloyed High-Speed Steel): Contains 5% Cobalt alloy (mostly M35 steel), providing exceptional resistance to high temperatures (Red Hardness). This maintains sharpness and durability even at high cutting speeds.

Surface Treatment

Gold Series (Typically Titanium Nitride - TiN Coating): Hard, thin, and gold-colored coating. Increases wear resistance, reduces the coefficient of friction, and minimizes heat buildup, thereby significantly extending tool life.

Shank Type

Cylindrical Shank: Compatible with standard drill chucks.

Point Angle (Approx.)

Generally 135° point angle and split point geometry. This aids in excellent centering by reducing the need for a pilot hole (center punch).

Cutting Direction

Right Hand Cut

Areas of Use and Industries

This drill bit is used in critical applications, especially for M8 threading operations and drilling difficult-to-machine materials:

Machine Manufacturing and Toolmaking: Pre-drilling for M8 metric threads (for standard 1.25 mm thread pitch) and machining hardened tool steels.

Automotive and Sub-Industry: Drilling holes for M8 connection points in engine, chassis, and critical components.

Marine and Chemical Industry: Drilling in stainless steel (INOX) materials, which are essential due to high corrosion resistance requirements.

Aerospace Industry: Precision drilling operations in special alloy materials.

General Metal Fabrication: Preparation of M8 bolt connection holes requiring critical strength.

User Information and Benefits

This product caters to professional users seeking consistent high performance, long life, and efficiency in demanding materials:

Maximum Strength for M8 Thread: The 6.5 mm diameter is the ideal pilot hole diameter for M8 (1.25 mm pitch) threads. This ensures the highest strength of the thread profile after tapping.

Stainless Steel Expert: Thanks to its HSS-E (Cobalt) content, it exhibits high heat resistance even in hard-to-machine materials like stainless steels, extending tool life.

Cost/Efficiency Optimization: TiN coating reduces friction and heat, extending the life of the tool. This reduces production downtime and operating costs.

Excellent Centering and Speed: The 135° split point geometry prevents the drill from walking (wandering) on the material and shortens processing time by reducing the need for a center drill.

Broad Material Spectrum: Offers superior performance across a wide range of materials, including high-strength steels, cast irons, and bronzes.

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