AYDCDD2306HSS-CO NC Spotting Drill 90° D2306已售出0個HSS-CO NC Spotting Drill 90° D2306, a cobalt HSS spotting drill whose 90-degree point marks precise starting points for NC machining, keeping subsequent drills on target. Diameter 3~20mm, overall length 46~131mm, 2~4xD, available in 9 sizes. Works on carbon steel, alloy steel, stainless steel plus aluminum, copper and other non-ferrous metals up to HRC35 - a dedicated NC center spotting drill. French brand, consistent quality.
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Center Spotting Drill
Product Overview: HSS NC Spot Drill 90° – D2306 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-CO Cobalt High-Performance Substrate: Manufactured with cobalt high-speed steel (HSS-CO), delivering superior red hardness and wear resistance compared to standard high-speed steel — recommended for applications requiring long-duration stable spot drilling or machining of harder materials.
- 90° Spot Drilling Dedicated Angle: Features a 90° point angle design — recommended for standard NC spot drilling operations, ensuring stable guidance for subsequent drill bit entry, effectively preventing drill deflection and improving hole position accuracy.
- 2–4D Depth-to-Diameter Ratio Multi-Depth Coverage: Depth-to-diameter ratio spanning 2–4D — providing deeper spotting depth compared to standard 1D center drills, recommended for applications requiring deeper positioning guidance to improve starting stability for subsequent deep hole drilling.
- 9 Specification Flexible Selection: Available in diameter 3–20mm, flute length 12–40mm, and overall length 46–131mm across 9 specifications — recommended for flexible selection based on workpiece hole diameter and machining depth requirements.
【Machining Applications & Uses】
- Primary Use: Pre-drilling spot positioning in NC machining centers, 90° chamfer positioning, and precision hole center guidance.
- Recommended Work Materials:
- P-Class (Carbon Steel / Alloy Steel): Structural steel, carbon steel, and alloy steel — recommended for hardness below HRC35, where the HSS-CO substrate delivers stable spot drilling cutting performance.
- M-Class (Stainless Steel): SUS304, SUS316, and other high-toughness stainless steel — the cobalt content of HSS-CO effectively suppresses cutting heat accumulation and maintains positioning accuracy.
- N-Class (Non-Ferrous Metals): Aluminum alloys, pure copper, brass, and other non-ferrous metals — the HSS-CO substrate ensures stability and surface quality during spot drilling of soft materials.
