Below is a detailed technical proposal for customizing CNC toolholders, cutters, and blades for 12.9-grade Torx screws. The content is organized into modular sections to ensure professionalism and practicality.
I. Basic Parameter Requirements
Specification Range
Metric Threads: M2.5, M3, M4, M5, M6, and M8 (other sizes require separate confirmation).
Thread Length: Default is 2 times the nominal diameter; custom lengths are available.
Head Type: Internal Torx (T-slot), compliant with ISO 10664. Common Specifications:
M2.5/M3: T10
M4/M5: T20
M6/M8: T30
Material and Hardness
Material: SCM435 alloy steel (or 42CrMo4), vacuum hardened.
Hardness: HRC 39-44+ with core toughening treatment.
Surface Treatment: Blackening/Phosphating (rust prevention), optional nickel plating (corrosion resistance).
Tolerance Standards
Thread Accuracy: 6g (GB/T 197)
Head Concentricity: ≤0.05mm
Shaft Straightness: ≤0.1mm/100mm
III. Customization Options
Special Structural Requirements
Short Tail Design (Reduces Interference)
Guide Taper (Easy Assembly)
Non-standard Hexagonal Sockets (e.g., T15, T25, etc.)
Marking and Packaging
Head Laser Engraving: Specifications, Grade 12.9, and Manufacturer's Code.
Packaging: Blister Box (100 pcs/box) or Roll Packaging (500 pcs/roll), Wrapped in Anti-rust Paper.
IV. Quality Control Documents
Mandatory Inspection Items:
Material Report (SGS/MSDS)
Hardness Test (Samples Per Batch)
Salt Spray Test Report (48-hour Neutral Salt Spray)
Full-Dimensional Inspection Report (GB/T 90.1)
V. Delivery Time and Quote
Standard Products: 7-15 days (Can be shortened if sufficient inventory is available)
Customization: 20-30 days (3D drawings required for confirmation)
MOQ: 500 pieces/specification (Negotiable)
We recommend providing sample confirmation before mass production to ensure compatibility with CNC toolholder clamping systems.
The core of this series of tools is the combination of material, geometric design, and CNC adaptability to achieve high-precision and efficient screw processing, making it particularly suitable for high-volume precision manufacturing.
