1. Product Introduction
The 40-Piece Metric Tap and Die Set is the cornerstone of any well-equipped home workshop, garage, or maintenance department. Designed for the DIY enthusiast and the professional mechanic alike, this comprehensive kit allows you to create brand-new threads or restore stripped, rusted, and damaged ones with industrial-grade precision.
Crafted from high-carbon Bearing Steel (Alloy Steel) and housed in a heavy-duty blow molded case, this set is built to provide maximum versatility. Whether you are working on a classic car restoration, fixing household plumbing, or maintaining garden equipment, this "problem-solver" kit ensures you have the right tool for almost any metric fastener.
2. Technical Specifications Matrix
| Category |
Specifications / Details |
Quantity |
| Metric Taps (Plug) |
M3x0.5, M3x0.6, M4x0.7, M4x0.75, M5x0.8, M5x0.9, M6x0.75, M6x1.0, M7x0.75, M7x1.0, M8x1.0, M8x1.25, M10x1.25, M10x1.5, M12x1.5, M12x1.75 |
16 PCS |
| Metric Dies (Round) |
M3x0.5, M3x0.6, M4x0.7, M4x0.75, M5x0.8, M5x0.9, M6x0.75, M6x1.0, M7x0.75, M7x1.0, M8x1.0, M8x1.25, M10x1.25, M10x1.5, M12x1.5, M12x1.75 |
16 PCS |
| NPT Thread |
1/8-27 NPT (Tap & Die) |
2 PCS |
| Tap Wrench |
Long Handle Adjustable (M3 - M12) |
1 PC |
| T-Handle Wrench |
Specialized for tight spaces |
1 PC |
| Die Stock |
25mm (1") O/D Holder |
1 PC |
| Accessories |
Pitch Gauge, Screwdriver, Blow Molded Case |
3 PCS |
| Total Pieces |
Material: Premium Bearing Steel |
40 PCS |
3. Customer Challenges & Engineered Solutions
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Challenge: Tools chipping or snapping under manual torque.
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Solution: We utilize Premium Bearing Steel that undergoes a specialized vacuum heat-treatment process. This achieves a hardness of 58-62 HRC, providing the perfect balance: hard enough to maintain a razor-sharp cutting edge for hundreds of uses, but tough enough to resist the brittleness that leads to snapping.
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Challenge: Crooked threads or difficulty "starting" the cut.
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Solution: Every die features a double-sided leading chamfer, which allows the tool to self-center on the rod. Our taps are Plug Style (with a 3-5 thread lead), which reduces the initial torque required to start the cut, making it significantly easier for DIYers to achieve a perfectly straight thread.
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Challenge: Inaccurate thread fit leading to loose fasteners.
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Solution: Unlike cheaper stamped alternatives, our tools are fully ground to maintain a strict 6H Metric tolerance. This precision ensures that your fasteners have a snug, vibration-resistant fit that meets international engineering standards.
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Challenge: Lost tools or damaged edges in a messy toolbox.
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Solution: The set is protected by a Professional Blow Molded Case. Unlike thin metal boxes, this case absorbs impact and features Snap-Lock Labeled Slots. Every tool is held securely in place, preventing precision edges from banging together and ensuring you find the right size instantly.
4. Primary Product Applications
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Automotive Maintenance: Cleaning out oxidized engine block holes, restoring rusted wheel studs, and repairing stripped threads on alternator or suspension brackets.
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Household Repair: A "must-have" for repairing stripped threads on furniture bolts, garden equipment (lawnmowers/trimmers), and plumbing fixtures.
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Pneumatic & Sensors: The included 1/8-27 NPT tools are specialized for repairing oil pressure sensors, water temperature senders, and small air line fittings.
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DIY Fabrication: Ideal for makers working with aluminum, brass, and mild steel for custom bracketry, robotics, or mechanical prototypes.
5. FAQ (Technical Support)
Q: Can this set be used on high-tensile Stainless Steel?
A: This bearing steel set is optimized for mild steel, copper, aluminum, brass, and plastics. While it can handle occasional use on softer stainless steel, we recommend our HSS-E (Cobalt) series for consistent stainless steel production.
Q: Why do I need both a Long-Handle and a T-Handle wrench?
A: The long handle provides maximum leverage for larger sizes like M10 or M12. The T-handle is critical for cramped spaces, such as inside an engine bay or under a sink, where a full rotation of a long handle is physically impossible.
Q: Is cutting lubricant necessary for simple repairs?
A: Absolutely. Even for a quick fix, a drop of cutting oil or WD-40 significantly reduces heat and friction. This ensures a smoother thread finish and prevents the tool from seizing or dulling prematurely.
Q: How do I identify the correct size for a repair?
A: Every tap and die is clearly laser-etched with its size and pitch (e.g., M8 x 1.25). Additionally, the storage case features labeled slots to help you stay organized and find the right tool at a glance.
Product Tags:
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Master 40PC Metric Threading Tool Kit | Durable Alloy Steel Taps & Dies | Comprehensive Maintenance Set for DIY & Workshop Images
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