Onsite-verified manufacturer by Intertek Danyang, Jiangsu, China
ISO 965 & DIN EN 22568 Compliance

Metric Thread Die Manufacturers & Exporter serving Maribor

Precision Round Dies, Hexagon Die Nuts, and Custom High-Speed Steel External Threading Cutters Engineered for Podravska's Advanced Mobility, Mechanical Engineering & Industrial Assemblies

Precision Factory Inventory

High-Performance Tooling Solutions Serving Maribor Fabricators

Explore our export-ready industrial tool program engineered to rigid European specifications. In addition to our flagship metric thread dies, we manufacture fully ground cutting, drilling, and finishing systems tested in demanding automotive and structural operations.

HSS Tooling BORUI 12-80MM Hole Saw Drill Bit Set HSS Hole Cutter for Stainless Steel, Metal, Iron, Wood

BORUI 12-80MM Hole Saw Drill Bit Set HSS Hole Cutter for Stainless Steel, Metal, Iron, Wood With Plastic Box

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Abrasives SUBORUI OEM Metal Cutting Grinding Disc 4 Inch Cut off Wheel 115mm 4.5 Inch Iron Metal Cutting Wheel

SUBORUI OEM Metal Cutting Grinding Disc 4 Inch Cut off Wheel 115mm 4.5 Inch Iron Metal Cutting Wheel for Metal

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Fastening SUBORUI 50mm Length Cross S2 Short Magnetic Electric Screwdriver Bit Set

SUBORUI 50mm Length Cross S2 Short Magnetic Electric Screwdriver Bit Set Wind Batch Head Phillips Screw Driver Bits

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M42 Cobalt SUBORUI OEM ODM Wholesale Premium 14mm-60mm Ultra-thin 1/4 Hex Shank M42 Bi-Metal Hole Saw

SUBORUI OEM ODM Wholesale Premium 14mm-60mm Ultra-thin 1/4 Hex Shank M42 Bi-Metal Hole Saw for Metal and Wood

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Co 5% Alloy SUBORUI DIN338 135 Degree Split Point M35 Cobalt HSS Drills CNC Spiral Twist Drill Bit

SUBORUI DIN338 135 Degree Split Point M35 Cobalt HSS Drills CNC Spiral Twist Drill Bit for Stainless Steel 304

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TiN Coated SUBORUI DIN338 Fully Ground Titanium 1-20mm Customized Tin Coated Hss M2 6542 Metal Twist Drill Bits

SUBORUI DIN338 Fully Ground Titanium 1-20mm Customized Tin Coated Hss M2 6542 Metal Twist Drill Bits

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Cutter Set SUBORUI Wholesale Factory 3PCS 20mm 23mm 32mm Ultra-thin Hex Shank M42 Bi-Metal Hole Saw Kit

SUBORUI Wholesale Factory 3PCS 20mm 23mm 32mm Ultra-thin Hex Shank M42 Bi-Metal Hole Saw Drill Bit Kit Set

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Masonry SUBORUI OEM Wholesale 40Cr 6*110mm 4 Flute Single Carbide Tip SDS Plus Hammer Drill Bits

SUBORUI OEM Wholesale 40Cr 6*110mm 4 Flute Single Carbide Tip SDS Plus Hammer Drill Bits for Concrete

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Engineering Whitepaper

High-Precision Metric Threading Dies for Industrial Metalworking

In high-torque powertrain systems, hydraulic assemblies, and structural fastening throughout Maribor and the Drava industrial corridor, external metric threads require flawless lead entry, precise flank angles, and predictable chip evacuation. Our manufacturing facility produces circular dies (DIN EN 22568) and hexagon die nuts (DIN 382) engineered to withstand extreme torsional stress across austenitic stainless steel, high-tensile carbon steels, and ductile alloys.

Metallurgical Metallurgy & HSS Alloys

We manufacture metric dies from vacuum-hardened HSS M2 (6542), cobalt-alloyed M35 (Co 5%), and powder-metallurgy HSSE-PM steels. With uniform carbide distribution and hardness levels reaching 64–67 HRC, our dies resist abrasive flank wear and micro-chipping even during continuous automated lathe threading of 304 and 316 grade stainless steel.

Precision Chamfer & Spiral Entry

Standard dies feature a 1.75 to 2.25 pitch chamfer lead for smooth torque transition. For blind threaded studs or close-to-shoulder operations, we grind short 1.25-pitch leads. For automated CNC lathe threading, our spiral point (gun nose) metric dies drive swarf forward ahead of the cut, completely eliminating thread binding and face gouging.

Surface Treatments & ISO Tolerance

Ground to strict ISO 6g tolerance classes (with optional 6e for pre-galvanized bolts and 4h for aerospace-grade precision fits), all dies undergo specialized surface engineering. Options include steam tempering (black oxide) for anti-welding coolant retention, TiN physical vapor deposition for high lubricity, and TiAlN for heat-intensive dry threading.

Metric Thread Size Pitch (P) mm Outer Diameter x Thickness (mm) Clearance Flutes Standard Fit Class Recommended Rod Chamfer Optimal Alloy Grade
M3 x 0.5 0.50 (Coarse) 20 x 5 3 Flutes ISO 6g / DIN 13 0.6 mm x 45° HSS M2 / TiN Coated
M6 x 1.0 1.00 (Coarse) 20 x 7 4 Flutes ISO 6g / DIN 13 1.2 mm x 45° HSS-E M35 Cobalt
M8 x 1.25 1.25 (Coarse) 25 x 9 4 Flutes ISO 6g / 6e 1.5 mm x 45° HSS-E M35 Cobalt
M10 x 1.5 1.50 (Coarse) 30 x 11 4 Flutes ISO 6g / DIN 13 1.8 mm x 45° HSSE-PM / TiAlN
M12 x 1.75 1.75 (Coarse) 38 x 14 4–5 Flutes ISO 6g / 4h 2.2 mm x 45° HSS M2 / HSS-E
M16 x 2.0 2.00 (Coarse) 45 x 18 5 Flutes ISO 6g / DIN 13 2.5 mm x 45° HSS-E M35 Cobalt
M20 x 2.5 2.50 (Coarse) 45 x 18 5 Flutes ISO 6g / DIN 13 3.0 mm x 45° HSSE-PM / Nitrided
M10 x 1.0 Fine 1.00 (Metric Fine) 30 x 11 4 Flutes ISO 6g / DIN 13 1.2 mm x 45° HSS M2 / TiN Coated
Podravska Industrial Integration

Localized Applications Serving Maribor’s Manufacturing Ecosystem

Maribor holds a rich engineering legacy as Slovenia’s industrial hub, pivoting rapidly toward smart automation, commercial e-mobility systems, and precision sub-tier manufacturing. Our export operations supply metric thread cutting tools directly matched to local factory shop floors.

Automotive Components in Cona Tezno

Situated in the historic TAM industrial zone, modern automotive suppliers manufacture suspension links, steering arms, and brake caliper housings. Our M6–M16 6g round dies provide chatter-free external threading on hardened alloy steel studs, ensuring tight vibration tolerances demanded by German and Austrian OEMs.

Commercial Mobility & Rail Transit

Serving regional bus builders and rail maintenance hubs connected to Maribor’s primary rail network, our heavy-duty M18 to M36 hexagon die nuts allow rapid on-chassis thread chasing and repair without disassembling bulky structural bogies or air reservoir brackets.

Robotics & Special-Purpose Machinery

Maribor-based machine builders and automation integrators rely on our fine-pitch metric dies (such as M12x1.25 and M14x1.5) for pneumatic manifolds, ball screw mounts, and sensor adapter spindles requiring concentricity within 0.015 mm TIR.

Drava Valley Hydro Maintenance

Hydroelectric power stations along the Drava River require corrosion-resistant stainless steel fasteners. Our cobalt M35 steam-tempered dies cut clean metric threads on 316Ti rods and valve shaft stems, preventing surface galling in damp subterranean generator halls.

Market Foresight & Regional Logistics

Emerging Tooling Trends across Eastern Slovenia & Central Europe

As Slovenia strengthens its supply chain integration with Austrian (Styria) and German industrial sectors, tooling procurement managers in Maribor face shifting production requirements. Here is how our precision metric die program supports these evolving standards.

Lightweighting & High-Tensile Fasteners

Vehicle lightweighting trends require threading high-strength structural alloys like 42CrMo4 and aluminum-silicon castings. Conventional carbon steel dies fail prematurely under these loads. We supply vacuum-hardened HSS-E cobalt dies designed with acute relief angles that reduce cutting torque by up to 28% and prevent tear-out.

Dry Threading & MQL Sustainability

European environmental directives are driving Slovenian machine shops toward Minimum Quantity Lubrication (MQL) and dry threading. Our advanced TiAlN and AlCrN multi-layer coatings form an ultra-hard aluminum oxide thermal barrier, permitting surface speeds up to 15 m/min without thermal softening or welded edge buildup.

Streamlined Logistics via Koper & Graz

Serving Maribor's manufacturers with agile factory-direct deliveries, our export supply chain utilizes sea-freight corridors into the Port of Koper for bulk container shipments, combined with direct air express hubs into Graz Airport (GRZ) and Ljubljana (LJU) for rapid 48-hour delivery of custom CNC die runs.

2007
Established
12,000 m²
Production Plant
150+
Master Toolmakers
90M
Bits & Tools / Year
20+
Export Nations
Direct Factory Manufacturer

Jiangsu WRD Tools Co., Ltd. Precision Engineering Authority

Founded in March 2007 in Danyang—the heart of China's premium cutting tool cluster—Jiangsu WRD Tools Co., Ltd. operates as a dedicated OEM/ODM manufacturer with RMB 10 million in registered capital. We are an authentic production facility, not a trading intermediary. Every single metric threading die, twist drill, and hole saw is manufactured in-house under uncompromising DIN and ISO metrology protocols.

With annual revenues exceeding RMB 80 million, our plant was awarded High-Tech Enterprise status by the Jiangsu Provincial Government in 2019. Our external thread cutting tools and precision ground drills are relied upon by premier multinational cutting tool brands across Western Europe and the Americas.

BOSCH Partner Milwaukee Spec DeWalt Sourced Makita Standard Wolfcraft Approved KWB Certified

Intertek Onsite Audit & Quality Guarantees

  • Intertek Audited: Complete facility, QA/QC laboratories, and metallurgy workshops verified onsite.
  • Full Material Traceability: Certified chemical composition spectrography with 3.1 EN 10204 test sheets for every steel batch.
  • Optical Thread Profilers: Flank angle accuracy checked via 50x magnification digital optical comparators.
  • B2B Private Labeling: High-resolution laser engraving, custom thread pitch markings, and custom casing packaging.
Procurement & Technical Intelligence

Frequently Asked Questions by Tooling Buyers in Maribor

Everything procurement heads, tooling engineers, and distributors in the Podravska region need to know regarding technical standards, import processing, and custom manufacturing.

1. What is the difference between solid round dies and split metric dies for local CNC lines?

Solid round dies (DIN EN 22568) maintain an exact fixed diameter and produce rigid, consistent ISO 6g threads across continuous production runs on CNC lathes. Split dies feature an adjustable expansion slot, allowing manual operators to slightly adjust pitch diameter for loose or interference fitting in maintenance workshops.

2. What pitch tolerance class should we specify for automotive export parts going to Austria/Germany?

ISO 6g is the universal European standard for untreated bolts and threaded shafts. If your Maribor facility applies heavy electrolytic zinc or hot-dip galvanizing, choose our undersized ISO 6e or 6az dies to prevent assembly bind after surface plating.

3. Can you manufacture left-hand metric threading dies and non-standard thread pitches?

Yes. Our CNC toolroom grinds left-hand (LH) metric dies (e.g., M12x1.25 LH for circular saw spindles and bicycle hubs) and special pitch combinations (such as M18x1.0 or M27x1.5) with standard lead times under 15 working days.

4. What are the import procedures, customs tariffs, and delivery timelines to Maribor?

Shipments to Slovenia follow EU customs procedures (TARIC code for threading dies: 8207.40). Bulk orders ship via container into the Port of Koper within 28–32 days. Urgent tool orders ship via DHL or FedEx straight into Maribor or Graz within 4 to 6 business days.

5. Which coolant chemistry do you advise when threading austenitic stainless steel (Inox)?

When cutting external threads on AISI 304 or 316 stainless bar stock, water-soluble emulsions must have at least 8–10% oil concentration with extreme-pressure (EP) chlorinated or ester additives. For manual tapping or low-speed threading, sulfurized neat cutting oil prevents thread tearing.

6. What is the Minimum Order Quantity (MOQ) for custom private-label metric die sets?

Standard off-the-shelf single metric dies have an MOQ starting at 50 to 100 pieces per size. Custom-branded tap and die sets in custom metal or molded plastic boxes with bilingual Slovenian/English labeling typically begin at 500 sets.

Source Precision Metric Thread Dies Directly from the Factory

Whether you require standard DIN EN 22568 round dies for automotive Tier-2 manufacturing in Tezno or custom TiAlN-coated external threading tools for tough alloys, our engineering specialists will provide comprehensive technical drawings and competitive FOB/CIF quotation within 24 hours.

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