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| Brand Name: | XRTOOLS |
| Model Number: | 5/8 |
| MOQ: | 500SET |
| Price: | $2.35/SET |
| Delivery Time: | 30-35DAYS |
| Payment Terms: | L/C, D/P, T/T |
Professional mechanics and engineers frequently face these issues with low-quality threading tools:
Tool Breakage: Carbon steel tools often snap inside the hole, leading to expensive extraction processes.
Thread Sloppiness: Poorly calibrated dies create loose threads (loose fits) that compromise structural integrity.
Fast Wear: Tools dull quickly when working with Grade 8 bolts or stainless steel.
Inaccurate Pitch: Slight deviations in TPI (Teeth Per Inch) lead to cross-threading during assembly.
Our HSS-E (Cobalt-ready) series solves these challenges through superior metallurgy and precision grinding:
Fully Ground HSS Construction: Provides significantly higher heat resistance and edge retention than alloy steel.
Precision Class 2B/2A: Taps and dies are calibrated to strict ANSI/ASME standards for a perfect industrial fit.
Enhanced Evacuation: Optimized flute geometry ensures smooth chip flow, preventing "chip packing" and tool snapping.
Laser-Etched Clarity: Permanent high-contrast markings ensure you never grab the wrong size in a busy workshop.
| Component | Dimension (Imperial) | Dimension (Metric) | Technical Details |
| Thread Size | 5/8" - 18 UNF | 15.875mm | Fine Thread Series |
| Total Tap Length | 3.98 in | 101 mm | Standard Reach |
| Tap Thread Length | 1.38 in | 35 mm | Full Depth Capability |
| Shank Diameter | 0.49 in | 12.5 mm | Reinforced Stability |
| Square Head Size | 0.39 x 0.39 in | 10 x 10 mm | Compatible with Standard Wrenches |
| Die Outer Diameter | 1.5 in | 38 mm | Fits Standard Die Stocks |
| Die Thickness | 0.55 in | 14 mm | High Torque Resistance |
| Material Grade | HSS (High Speed Steel) | HSS | Rockwell Hardness 62-65 HRC |
| Accuracy Class | 2B (Tap) / 2A (Die) | - | Precision Fit |
Automotive: Specialized for steering linkages, wheel studs, and suspension bolts requiring UNF fine threads.
Aerospace: High-tensile fasteners where vibration resistance is critical.
Industrial MRO: Repairing damaged threads on hydraulic fittings and heavy-duty machinery.
We offer localized packaging solutions to meet regional market demands:
Professional Retail Case: High-impact blow-molded plastic case with internal foam sizing for the North American market.
Industrial Bulk Pack: 10-piece industrial boxes for European factory supplies.
Custom Metal Tin: Heavy-duty aluminum cases preferred by the Russian and Eastern European markets.
Q: Can this set work on Stainless Steel 304/316?
A: Yes. Because it is made of High-Speed Steel (HSS), it can handle stainless steel, though we recommend using high-quality sulfur-based cutting oil for best results.
Q: Is the die adjustable or solid?
A: This is a solid round die, providing maximum stability and accuracy for creating new threads or cleaning heavily damaged ones.
Q: Does it follow Metric or American standards?
A: This specific set follows the UNF (Unified National Fine) American standard, which is widely used in automotive and aviation industries globally.
Q: What is the recommended drill bit size for this tap?
A: For a 5/8"-18 UNF tap, the recommended tap drill size is 37/64" (14.50mm).
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