AYDCDDV301HSS-EX Center Drill DV301已售出0個HSS-EX Center Drill DV301, a spotting/center drill that marks hole positions before drilling, preventing walk and improving positional accuracy. Diameter 1~6.3mm, overall length 35~78mm, available in 17 sizes. TiN coating boosts wear resistance and tool life. Works on carbon steel, alloy steel, stainless steel plus aluminum, copper and other non-ferrous metals up to HRC40/HRC35 - the standard center spotting drill. French brand, consistent quality.
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Center Spotting Drill
Product Overview: HSS Center Drill – DV301 Series
【Product Features & Why We Recommend It】
- French Brand Professional Quality: Originating from a professional French cutting tool brand with rigorous quality control — recommended for precision machining users with high demands on center positioning accuracy and tool consistency.
- HSS-EX High-Performance Substrate: Manufactured with HSS-EX ultra-high-performance high-speed steel, delivering superior hardness and wear resistance compared to standard high-speed steel — recommended for applications requiring long-duration stable center drilling operations.
- TiN Coating Enhancement: The surface is treated with TiN coating, providing good wear resistance and heat resistance — recommended for center positioning across carbon steel, alloy steel, stainless steel, and non-ferrous metals, effectively extending tool service life.
- Center Positioning Dedicated Design: Developed specifically for center positioning prior to drilling — recommended for pre-drilling center spotting to effectively prevent drill bit deflection, improve hole position accuracy, and ensure dimensional consistency throughout subsequent machining operations.
- 17 Specification Full Coverage: Available in diameter 1–6.3mm, flute length 1–8mm, and overall length 35–78mm across 17 specifications — recommended for flexible selection based on workpiece hole diameter and material characteristics.
【Machining Applications & Uses】
- Primary Use: Pre-drilling center positioning, spot drilling for deflection prevention, and precision hole location marking.
- Recommended Work Materials:
- P-Class (Carbon Steel / Alloy Steel): Structural steel, carbon steel, and alloy steel — recommended for hardness below HRC40, where HSS-EX combined with TiN coating delivers stable center positioning cutting performance.
- M-Class (Stainless Steel): SUS304, SUS316, and other high-toughness stainless steel — recommended for hardness below HRC35, where the TiN coating effectively suppresses adhesion and maintains positioning accuracy.
- N-Class (Non-Ferrous Metals): Aluminum alloys, pure copper, brass, and other non-ferrous metals — the HSS-EX substrate combined with TiN coating ensures stability and surface quality during center positioning of soft materials.
