M10x1.25 Automotive Thread Repair Kit | Precision HSS Tap and Round Die for Car Repair
1. Critical Challenges & Professional Solutions
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Challenge: Stripped Japanese Automotive Bolts
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Solution: M10x1.25 is the standard for most Japanese (JIS) automotive fasteners. Our precision-ground tap restores damaged threads to factory specifications, saving expensive components from the scrap heap.
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Challenge: Tool Breakage in High-Tensile Steel
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Solution: Engineered from Premium HSS-E (M35 Cobalt), our tools maintain their cutting edge at higher temperatures, preventing the "snapping" common in carbon steel alternatives.
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Challenge: Loose Thread Tolerances
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Solution: Strictly calibrated to 6H (Tap) and 6g (Die) accuracy, ensuring a vibration-resistant fit that meets OEM safety standards.
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2. Technical Specifications Matrix
| Feature | Imperial Dimension | Metric Dimension | Technical Notes |
| Thread Specification | M10 x 1.25 | M10 x 1.25mm | Metric Fine (MF) / JIS Standard |
| Pitch (P) | 0.049 in | 1.25 mm | Enhanced Clamping Strength |
| Tap Total Length | 3.11 in | 79 mm | Reinforced Shank (DIN Style) |
| Thread Cutting Length | 1.02 in | 26 mm | Optimized for Deep-Hole Reach |
| Tap Shank Diameter | 0.236 in | 6 mm | High Torque Resistance |
| Die Outer Diameter | 1.18 in | 30 mm | Fits Standard 30mm Die Stocks |
| Die Thickness | 0.43 in | 11 mm | Solid Round Construction |
| Material Grade | HSS / HSS-E | HSS / HSS-E | Fully Ground for High Precision |
| Surface Treatment | Bright / TiN | Bright / TiN | Friction-Reduced Finish |
3. Key Product Advantages
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Ultra-Sharp Ground Threads: Unlike rolled threads, our ground threads feature micro-polished cutting edges that reduce friction by 30%, ensuring clean, burr-free results.
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Advanced Chip Evacuation: The tap geometry is optimized to pull chips away from the cutting zone, significantly reducing the risk of "chip packing" in blind holes.
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Global Standard Compliance: Fully compliant with ISO, DIN, and ANSI technical benchmarks, facilitating seamless integration into global supply chains (Russia, EU, Americas).
4. Packaging & Industrial Branding (OEM)
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Individual Protection: Each set is housed in an anti-corrosive oil-sealed PP tube.
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Custom Branding: We offer high-definition laser engraving for your brand logo, material grade (e.g., HSS-E), and size directly on the tool.
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Bulk Supply: Available in master cartons of 50 or 100 sets for international wholesalers.
5. FAQ (Technical Support)
Q: Why use M10x1.25 instead of the standard M10x1.5?
A: M10x1.25 is a "Fine" thread. It has a shallower thread depth and smaller pitch, which provides a larger minor diameter (stronger bolt) and better resistance to loosening under vibration—standard for automotive chassis.
Q: What is the recommended drill bit size for this M10x1.25 tap?
A: The standard tap drill size is 8.8mm. Using an 8.7mm bit can be used for higher thread engagement in softer materials.
Q: Can this die be used for creating new threads on a raw rod?
A: Yes. Our HSS dies feature a 1.5-2.0 thread lead-in chamfer, allowing for easy starting on raw stock or pre-turned rods.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.