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| Brand Name: | XRTOOLS |
| Model Number: | 50mm |
| MOQ: | 500PCS |
| Price: | $0.8-12/PCS |
| Delivery Time: | 25-30 days |
| Payment Terms: | L/C, D/P, T/T, Western Union |
The Problem: Boring a 50mm (2") hole in heavy-gauge metal requires immense torque. With standard uncoated bits, the friction between the saw wall and the workpiece creates significant "rotational drag."
The Result: This drag forces the drill motor to work at maximum capacity, leading to rapid heat-soak in the tool and premature battery depletion in cordless equipment. On high-volume job sites, this translates to more frequent charging cycles and slower project completion.
Mechanical Drag: Bare high-speed steel has a natural affinity for other metals. During the 50mm rotation, microscopic "cold welds" occur between the tool and the workpiece, increasing the required torque.
Thermal Feed-Back: Heat generated by friction causes the metal workpiece to expand slightly, "gripping" the hole saw cup and further increasing the rotational load on the machinery.
Ultra-Slick TiN Barrier: Our 50mm Titanium Gold Series utilizes a Physical Vapor Deposition (PVD) coating that reduces the friction coefficient to 0.4. This creates a "slip-surface" that drastically reduces rotational drag, allowing the drill to maintain higher RPMs with 25% less energy consumption.
M2 Grade Thermal Resilience: Forged from M2 High-Speed Steel, the core maintains a 64-66 HRC hardness. While the Titanium armor reduces heat, the M2 core ensures that even if the tool reaches extreme temperatures, the teeth will not anneal or deform.
Tapered Perimeter Relief: Every 50mm saw is ground with a slight back-taper. This engineering detail ensures that only the cutting teeth engage the material, while the body of the cup remains free of the hole walls, further suppressing torsional load and preventing "binding."
| Technical Pillar | Specification Detail | Industrial Benefit |
| Material Grade | HSS M2 (W6Mo5Cr4V2) | Structural Integrity: Superior shock resistance. |
| Surface Armor | Titanium Nitride (TiN) | Energy Efficiency: Lower drag for cordless tools. |
| Boring Accuracy | TIR (Runout) ≤ 0.15mm | Precision: Exact 50mm sizing for 2" conduits. |
| Safety Feature | Reinforced Stopper Flange | Protection: Prevents plunging into interior components. |
| Chip Removal | Deep-Gullet Triple-Edge | Speed: High-volume chip evacuation for cooler cuts. |
| Ejection Feature | Heavy-Duty Center Spring | Productivity: Instant core ejection for fast cycles. |
Industrial Electrical Infrastructure: The primary tool for boring 2-inch entries in stainless steel switchgear enclosures and galvanized distribution boards.
Commercial Plumbing MRO: Precision boring for installing 2-inch copper and PVC main lines through structural metal studs and headers.
Mechanical HVAC Systems: Ideal for installing high-capacity sensors and primary coolant lines in heavy-gauge industrial ductwork.
Material Versatility: Optimized for Stainless Steel (≤ 2.5mm), Alloy Steel, Aluminum, and High-Density Composites.
High-Cycle Durability: The M2-TiN combination provides a 3x increase in total hole count compared to standard HSS bits, making it a more sustainable, low-waste choice for large-scale construction.
RPM Optimization: For 50mm in mild steel, maintain 150 - 200 RPM. For 304 Stainless Steel, reduce to 100 - 120 RPM to ensure the Titanium coating provides maximum thermal protection.
Q: How does the Titanium coating help my cordless drill battery last longer?
A: By reducing friction between the saw and the metal, the motor requires less current (Amps) to turn the tool. This reduces heat in the battery and motor, allowing for up to 20% more holes per charge.
Q: Is the 135° split-point pilot drill also coated?
A: Yes. The pilot drill is TiN-coated to ensure the initial penetration is as low-friction as the main cut, preventing heat buildup before the saw teeth even engage.
Q: Can I resharpen this tool?
A: While the solid M2 core can be resharpened, it will remove the Titanium coating from the cutting edge. However, the TiN on the tooth faces will continue to provide lubricity and reduce friction for the remainder of the tool's life.
Vacuum Heat Treatment: Our M2 steel is fully vacuum-hardened to ensure a uniform molecular structure and zero internal stress points.
Precision Concentricity: Every 50mm unit undergoes automated runout testing to ensure a stable, zero-wobble cutting experience.
Industrial Compliance: Manufactured to international engineering standards, ensuring job-site safety and consistent professional results across all 50mm applications.
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