· Product Overview

• A knurled textured body (for non-slip grip during manual operation)
• A stepped cylindrical profile (for multi-component compatibility)
• A top drive slot (to interface with shafts or tools for precise torque transfer)
• A lower split interface (for secure locking onto mating components)CNC-machined to ultra-tight tolerances and finished with a polished natural brass luster, these knobs deliver reliable, long-lasting performance in precision adjustment and drive applications.

· Core Specifications

• Material: H62 Brass
  • Tensile strength: ≥300 MPa (rigid for torque transfer)
  • Electrical conductivity: ≥20 MS/m (ideal for electrical applications)
  • Corrosion resistance: Good performance in dry/mild-moisture environments
• Manufacturing Standard: ISO 9001-Certified
  • Key Processes: CNC Turning (stepped profile) → Knurling (textured grip) → Slot Drilling (drive interface) → Deburring → Polishing
  • Standard Parameters:
    • Knurled Diameter: 15mm (customizable 12–20mm)
    • Total Length: 18mm (customizable 15–25mm)
    • Drive Slot Width: 3mm (customizable 2–4mm)
    • Dimensional Tolerance: ±0.01mm (ensures precise mating with shafts/components)
  • Surface Finish: Polished natural brass (smooth, non-slip, and visually consistent)

· Application Scenarios

• Electronic Instruments: Control knobs for test equipment, audio devices, or calibration tools (combines grip and electrical conductivity).
• Industrial Equipment: Manual adjustment knobs for conveyor systems, machine tool feeds, or valve positioning (wear-resistant for frequent use).
• Hobby & DIY Projects: Drive knobs for RC vehicle transmissions, custom jig adjustment, or robotics manual control components.
• Medical Devices: Precision adjustment knobs for diagnostic instruments or laboratory equipment (compliant with hygiene standards).

· Production Process Introduction

1. Raw Material Preparation: Cut H62 brass round bars into blanks matching knob length.
2. CNC Turning: Machine the stepped cylindrical profile and base interface to target dimensions.
3. Knurling Operation: Apply the textured knurl pattern to the body for non-slip grip.
4. Slot Drilling: Create the top drive slot and lower split interface for secure mating.
5. Deburring: Remove sharp edges from slots, knurls, and stepped transitions (prevents assembly damage and ensures safe handling).
6. Polishing & Inspection: Buff the surface to achieve a natural brass luster, then verify dimensional accuracy and finish quality.

· Packaging and Shipping Methods

• Packaging:
  • Individual Units: Sealed in anti-scratch, anti-static plastic bags (protects polished finish and prevents static damage).
  • Bulk Orders: Packed in foam-lined partitioned boxes (avoids knurl deformation, slot damage, and surface scratches).
• Shipping Options:
  • Express Delivery (DHL/FedEx: 3–5 business days for sample orders).
  • Air Freight (7–10 business days for small-batch production).
  • Sea Freight (20–25 business days for bulk orders).All shipments include full tracking and damage insurance.

· Process

· Frequently Asked Questions (FAQ)

• MOQ (Minimum Order Quantity): 1,000 pieces for standard configurations; 500 pieces for custom designs (with valid technical drawings).
• Lead Time: Standard lead time is 7–10 working days (includes CNC machining and polishing); expedited production (5–7 working days) is available for urgent orders (additional fees apply).
• Customization Capability: Full customization is supported—adjust knurled diameter, length, drive slot size, or add threaded features. Our engineering team validates designs for grip performance and torque transfer efficiency.