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The Din338 drill bits supplied by Danyang Tongyu Tools Co., Ltd. are manufactured from 4241, 4341, and 9341 steel alloys, selected for their balance of hardness and impact resistance. These bits are produced through rolling and surface polishing processes to reduce friction and improve chip evacuation during high-speed drilling. The geometry follows the DIN338 standard, ensuring compatibility with standard chucks and drill presses used in industrial settings.
The material composition aligns with common tool steel grades for general-purpose twist drills, though the supplier does not specify exact heat treatment parameters or Rockwell hardness values. Typical industry practice for similar steel grades involves tempering to achieve 58-62 HRC, but this cannot be confirmed for these products. The bits are not coated, and no surface treatments beyond polishing are mentioned.
These drill bits are commonly used in automotive component manufacturing, metal fabrication, and construction equipment assembly where consistent hole quality is required. Buyers typically order in bulk for production lines or maintenance workshops. Packaging is designed for transport efficiency, with bulk cartons or plastic trays. MOQ and lead time are not stated and must be confirmed directly with the supplier.
| Standard | DIN 338 |
| Material | 4241, 4341, 9341 steel |
| Shank Type | Straight |
| Point Angle | Typical 118° |
| Flute Design | Standard two-flute twist |
| Surface Finish | Polished |
| Tolerance on Diameter | Typical ±0.05 mm for standard sizes |
| Length Range | Typical 5x to 12x diameter, depending on size |
| Packaging | Bulk cartons or plastic trays |
| Hardness | Typical 58-62 HRC for similar tool steels |
Danyang Tongyu Tools Co., Ltd. is based in Houxiang Town, Danyang, Jiangsu Province, China. The supplier is listed as an imported-tier vendor with harbor-level trust verification, indicating confirmed business registration and physical address. No financial data, years in operation, or client list is provided in the listing.
The company's profile does not state production capacity, workforce size, or export history. It is not verified as a manufacturer or distributor, and no certifications such as ISO or CE are confirmed in the source data. The supplier responds to inquiries with zero recorded response rate, suggesting limited communication reliability.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before ordering, verify the exact steel grade and heat treatment process used, as performance varies significantly between 4241, 4341, and 9341. Request a sample to check edge sharpness, surface finish, and concentricity. Confirm whether the bits meet DIN338 dimensional tolerances and if material test reports are available. Do not assume compliance based on product name alone.
Lead time and Incoterms are not stated. Buyers should confirm whether FOB, CIF, or EXW terms apply and whether the supplier handles export documentation. Payment terms such as T/T or LC should be negotiated directly. Minimum order quantities are not disclosed, so inquire about flexibility for trial orders. Shipping from Jiangsu ports may reduce freight costs compared to inland origins.
Perform incoming inspection for diameter consistency, runout, and edge chipping. Use a micrometer and dial indicator to verify tolerances. Check for uniform polish and absence of burrs. Request a certificate of origin and packing list. For bulk shipments, consider third-party inspection services. Retain samples from each batch for quality traceability in production.
Compare alternatives, find similar products and connect with verified suppliers
Securing a reliable supply chain for Din338 is critical for maintaining your business operations. Danyang Tongyu Tools Co., Ltd., a verified supplier located in China, provides high-quality Din338 ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Drilling Machines & Tools industry, catering to distributors, wholesalers, and importers worldwide.
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Din338 from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Danyang Tongyu Tools Co., Ltd.. This seamless communication is powered by EximNext, a premier online B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
We understand that verifying supplier credentials is a top priority for importers. Danyang Tongyu Tools Co., Ltd. is part of our extensive network of vetted international exporters. Browse more products in the Drilling Machines & Tools category or discover new suppliers across the Drilling Machines & Tools sector. Expand your sourcing capabilities through our trusted B2B marketplace — the import export marketplace built for serious international trade.
When importing Din338 from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Click the "Request Quotation" button to contact Danyang Tongyu Tools Co., Ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Yes, Danyang Tongyu Tools Co., Ltd. provides Din338 for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Danyang Tongyu Tools Co., Ltd.. Contact the supplier to discuss the best logistics options for importing Din338 to your country.
Send a direct message to Danyang Tongyu Tools Co., Ltd. through our platform to request a product sample before committing to a large wholesale order.
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