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| Brand Name: | XRTOOLS |
| Model Number: | 40PC TAPS AND DIES SET |
| MOQ: | 500SET |
| Price: | $11.8/SET |
| Delivery Time: | 30-35DAYS |
| Payment Terms: | L/C, D/P, T/T |
The 40-Piece SAE Tap and Die Set is an essential toolkit for anyone working with Imperial fasteners. Whether you are restoring a vintage vehicle, maintaining farm equipment, or fixing household hardware, this set provides a full range of UNC (Coarse) and UNF (Fine) specifications.
Crafted from high-quality Alloy Steel (Bearing Steel) and housed in a durable, lightweight Injection Molded Case, this set combines professional precision with DIY-friendly value. Each tool is vacuum heat-treated to provide a sharp, durable cutting edge for work in mild steel, aluminum, brass, and plastics.
This set includes one tap and one matching die for each of the following sizes:
| Thread Size | TPI (Pitch) | Series | Thread Size | TPI (Pitch) | Series |
| No. 4 | 40 | UNC | 1/4" | 20 | UNC |
| No. 6 | 32 | UNC | 1/4" | 28 | UNF |
| No. 8 | 32 | UNC | 5/16" | 18 | UNC |
| No. 10 | 24 | UNC | 5/16" | 24 | UNF |
| No. 10 | 32 | UNF | 3/8" | 16 | UNC |
| No. 12 | 24 | UNC | 3/8" | 24 | UNF |
| 1/8" NPT | 27 | Pipe | 7/16" | 14 | UNC |
| 7/16" | 20 | UNF | 1/2" | 13 | UNC |
| 1/2" | 20 | UNF | - | - | - |
Included Accessories:
1 x Adjustable Tap Wrench (M3-M12 / 1/8"-1/2")
1 x T-Handle Tap Wrench
1 x Die Stock (1" O/D Holder)
1 x SAE Screw Pitch Gauge
1 x Precision Flat Head Screwdriver
1 x Durable Injection Molded Carrying Case
Challenge: Distinguishing between Coarse (UNC) and Fine (UNF) threads.
Solution: We include both versions for the most critical sizes (1/4", 5/16", 3/8"). Every tool is clearly laser-etched with its size and TPI, and the case features labeled slots to help you find the exact match instantly.
Challenge: Tools stripping or snapping during use.
Solution: Our tools are made from Premium Bearing Steel hardened to 58-62 HRC. This metallurgy ensures the teeth stay sharp for hundreds of uses while maintaining the toughness needed to resist brittle snapping under manual torque.
Challenge: Repairing specialized oil/gas sensor ports.
Solution: This set includes the 1/8"-27 NPT pipe tap and die, the industry standard for small pneumatic fittings and automotive sensor ports found in American-made engines.
Challenge: Achieving a professional, snug fit.
Solution: Every tap and die is fully ground to maintain a strict 2A/2B class tolerance. This precision-ground geometry ensures that your fasteners fit securely and resist loosening due to vibration.
Classic Car Maintenance: Essential for working on vintage American-made engines, frames, and body fasteners.
Small Engine Repair: Fixing threads on lawnmowers, snowblowers, and outdoor power equipment.
Home Hardware: Restoring stripped threads on door hinges, light fixtures, and furniture bolts.
Pneumatics: Using the 1/8" NPT tools for air compressor fittings and pressure gauges.
Q: Can I use this set on Stainless Steel?
A: This alloy steel set is optimized for mild steel, copper, aluminum, and brass. For continuous production work on high-tensile stainless steel, we recommend our HSS-E (Cobalt) series.
Q: Why are there two different thread counts for 1/4"?
A: 1/4-20 is the "Coarse" thread (UNC) used for general assembly, while 1/4-28 is the "Fine" thread (UNF) used in applications that require finer adjustment or better vibration resistance.
Q: Is cutting oil required?
A: Yes. To maximize tool life and achieve a clean, smooth thread, always use a few drops of cutting oil or WD-40 to reduce friction and help clear metal chips during the cutting process.
Q: How do I store the tools to prevent rust?
A: After use, wipe away any metal shavings and apply a light coat of anti-rust oil. The injection molded case provides a secure, organized environment to keep your tools in top condition for years.
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