CNC Precision Grinding for Consistency and Accuracy
Our OEM center drill tools are manufactured using CNC precision grinding to achieve strict dimensional tolerance, consistent step heights, and razor-sharp cutting edges. Accurate tip centering ensures clean hole starts with minimal vibration-ideal for automated and high-speed lathe applications in industrial metalworking.
Vacuum Heat Treatment for Extended Tool Life
Each drill bit undergoes vacuum heat treatment to enhance both surface hardness and core toughness. This thermal treatment increases wear resistance and thermal stability, making the tools suitable for long-term use in high-friction operations such as stainless steel, aluminum, and alloy drilling.
Ultra-Fine Polished Surface for Friction Reduction
The ultra-fine polished finish minimizes surface roughness, reducing friction and heat buildup during continuous drilling. It also enhances chip flow and protects the integrity of both the drill bit and the workpiece surface-especially important for softer metals and thermoplastics often used in OEM applications.
Refined Metallurgy & Advanced Thermal Optimization
1. Ultra-Clean HSS via EAF + LF + VD + ESR
Using advanced metallurgical refining (Electric Arc Furnace, Ladle Refining, Vacuum Degassing, and Electro-Slag Remelting), we produce ultra-clean high-speed steel with reduced impurities. This ensures higher strength, improved edge durability, and consistent performance in mass production environments.
2. Integrated Heat Treatment for HRC 67 Hardness
A proprietary combination of quenching, cryogenic processing, and tempering achieves optimal hardness (up to HRC 67), while maintaining toughness and resistance to edge chipping. Perfect for high-speed, high-pressure OEM machining tasks in the automotive and fabrication industries.
3. RS ESR Edge Enhancement Technology
Rapid Solidification ESR further strengthens the cutting edge by uniformly distributing fine carbides and cobalt. This boosts wear resistance and edge retention in extreme machining conditions-ensuring consistent results in OEM production lines.
OEM-Focused Custom Engineering Options
1. Material Flexibility - M35 Standard with M2/M42 Optional
Our standard configuration uses M35 HSS for its superior hardness-to-toughness ratio. M2 and M42 options are available to meet specific client requirements-offering flexibility across cost, hardness, and application demands.
2. Custom Geometry & PVD Coating Options
We support fully customizable engineering, including step diameters, flute lengths, tip angles, and helix geometries. PVD coatings such as TiN, TiAlN, and TiCN are available to meet your production environment-offering improved heat resistance, lubricity, and wear protection for extended tool life.
Application-Driven Design Adaptations
1. Multi-Step Flute Optimization for Chip Control
Flutes between steps are engineered to maximize chip removal and minimize thermal buildup. This design prevents clogging and ensures stable drilling, especially at high RPMs or when working with thin sheets and heat-sensitive materials.
2. Engineered Cutting Angles for Precision Drilling
We optimize cutting angles and step transitions to reduce axial force and deformation-providing clean, accurate results in soft metals and thin-walled components, common in precision fabrication work.
3. Performance Coatings for Specialized OEM Use
Optional coatings like TiAlN (for high-heat resistance) and TiCN (for high-wear environments) are ideal for demanding OEM production lines. These coatings extend tool lifespan and maintain performance in high-load, multi-diameter drilling conditions.
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