Multi-Layer G3 TiAlN HSS Drill Bit DIAGER 702, Fully Ground, S-Type Flute

The Diager 702 steel drill bit is a fully ground HSS twist drill bit designed for precision drilling in metalworking applications. At the core of its construction is a G3 multi-layer TiAlN coating, which acts as a thermal barrier and reduces friction during high-speed drilling. This advanced coating helps maintain sharpness and supports consistent performance over time. The drill bit is engineered with a 135° split point, allowing for stable self-centering and minimizing walking at the start of drilling.

The S-type flute design optimizes chip evacuation, reducing the risk of clogging and heat buildup. This contributes to smoother operation, especially during deep or continuous drilling tasks. The DIAGER 702 is manufactured to DIN 338 standards, ensuring dimensional accuracy and compatibility with both hand and bench drills. Diameter tolerance is maintained at h8, and the shank is cylindrical up to Ø12.7 mm, supporting a wide range of drilling setups.

Packaging is tailored to drill size: smaller diameters (Ø1–4.8 mm) are supplied in tubes containing two identical bits, while larger sizes (Ø5–20 mm) are individually packed. This approach ensures protection during storage and transport. The DIAGER 702 is suitable for professional users and technical environments where accuracy and reliability are required.

Diager 702 Steel Drill Bit

Technical Construction and Features

The DIAGER 702 steel drill bit is fully ground from HSS and finished with a G3 multi-layer TiAlN coating. This structure provides thermal insulation and reduces wear under demanding drilling conditions. The 135° split point design ensures precise centering and stable initial contact, while the S-type flute efficiently removes chips from the hole.

• Fully ground HSS construction
• G3 multi-layer TiAlN coating
• 135° split point, self-centering
• S-type flute for chip evacuation
• Diameter tolerance: h8
• Cylindrical shank up to Ø12.7 mm
• DIN 338 standard
• Packaged in plastic tubes (1 or 2 drills per tube)

This technical configuration is designed to support high-speed drilling in various metals. The flute geometry balances core strength and chip flow, while the coating helps maintain edge integrity and reduces the need for frequent tool changes.

Dimensional Range and Packaging

The DIAGER 702 is available in a wide range of diameters and lengths to suit different drilling requirements. Smaller drills are packed two per tube, while larger sizes are individually packaged. This ensures each drill is protected and easy to identify during storage or transport.

• Diameters: 1.0 mm to 20.0 mm
• Lengths and flute lengths vary by diameter
• Small sizes (Ø1–4.8 mm): 2 drills per tube
• Large sizes (Ø5–20 mm): 1 drill per tube

This packaging method is practical for workshop environments, reducing the risk of damage and simplifying inventory management. Each tube is clearly labeled with size and product code for quick selection.

Common Applications

The DIAGER 702 drill bit is engineered for use in alloyed steel, non-alloyed steel, gray cast iron, ductile cast iron, and aluminum. Its robust construction and advanced coating make it suitable for professional metalworking, fabrication, and maintenance tasks requiring precise, repeatable results.

• Drilling alloyed and non-alloyed steel
• Machining gray and ductile cast iron
• Working with aluminum components
• Suitable for both hand and bench drills

Catalog and Technical Reference

According to the catalog, the DIAGER 702 series includes a comprehensive range of diameters and lengths, with each variant identified by a unique product code. The drill bits adhere to DIN 338 standards and are supplied in robust plastic tubes to ensure protection and organization. Dimensional tables provide detailed information for selection and ordering.

• DIN 338 compliance
• Product codes for each size
• Clear dimensional tables for reference
• Protective packaging for all variants

For further technical details, consult the official catalog tables for precise diameter, flute length, and overall length information. This ensures accurate selection and compatibility with specific drilling requirements.