Turning tool holders set

Buyers should prioritize Shank Size (e.g., 10mm, 12mm, 16mm, 25mm) to ensure compatibility with their lathe's tool post. The Material Composition is critical; look for High-Quality Alloy Steel (40Cr or 42CrMo) that has been Hardened and Tempered (HRC 42-48) to resist vibration and deformation. Additionally, verify the Clamping System type (e.g., S-type screw-on, M-type multi-lock, or P-type hole clamping) based on the intensity of your machining tasks.

Check that the holders follow the ISO/ANSI International Coding System (e.g., MCLNR, SDJCR). This ensures you can easily source Standard Carbide Inserts (like CCMT, DCMT, or TNMG) from various global brands. Confirm the Approach Angle (e.g., 90°, 93°, 95°) matches your specific turning, facing, or profiling requirements to avoid tool interference.

Look for suppliers with ISO 9001:2015 Certification to ensure consistent manufacturing processes. For high-precision applications, request data on Dimensional Accuracy (within ±0.01mm) and Surface Finish quality (Black Oxide or Nickel Plating), which prevents corrosion and improves tool life. Suppliers on Made-in-China.com often provide SGS or TÜV Rheinland inspection reports to verify factory capabilities.

External Turning Holders are essential for general diameter reduction, while Boring Bars are required for internal diameter enlargement. For complex geometries, a set should include Threading and Grooving tools. Ensure the set provides a Right-Hand (R) and Left-Hand (L) orientation mix to cover all machining directions on a CNC or manual lathe.

Always request a Material Test Report (MTR) to verify the chemical composition of the steel. Use Made-in-China.com's Secured Trading services to hold payment until the goods pass a Pre-shipment Inspection (PSI). Avoid deals that are significantly below market price, as these often use unhardened carbon steel which fails under heat.

Since tool holders are dense and heavy, Sea Freight (LCL - Less than Container Load) is most economical for bulk orders over 100kg. For smaller sample sets, Air Express (DHL/FedEx) is faster but costly. Negotiate FOB (Free On Board) terms to maintain control over the shipping costs and choose your own freight forwarder to avoid hidden destination charges.

Start by requesting a Sample Order at a discounted rate to verify precision. Discuss Tiered Pricing based on annual volume rather than a single order. Ask if the supplier can provide OEM/Custom Branding (Laser Etching) on the holders, which adds value to your own brand. Ensure they offer a Quality Guarantee Period (typically 6-12 months) against manufacturing defects.

Verify the HS Code (typically 8466.10) for tool holders to calculate accurate import duties in your country. Ensure the packaging meets International Standards for Phytosanitary Measures (ISPM 15) if wooden crates are used. Provide the supplier with clear Labeling Instructions to include the 'Country of Origin' to prevent delays during customs clearance.