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| Brand Name: | XRTOOLS |
| Model Number: | 7pc hole saw set |
| MOQ: | 500set |
| Price: | $0.8-20/pc |
| Delivery Time: | 25-35days |
| Payment Terms: | L/C, T/T, D/P, Western Union, MoneyGram |
The Problem: On complex job sites involving various metal thicknesses—from thin electrical panels to thick structural beams—switching between standard HSS and bi-metal bits is time-consuming. Standard bits often burn out when they encounter unexpected hardened layers or stainless steel components.
The Result: Significant downtime, increased tool costs, and the frustration of not having the exact diameter required for a specific industrial gland or sensor.
Incomplete Sizing: Using a "near-fit" diameter leads to unstable mounting and failed pressure seals.
Tool Mismatch: Standard bits often slip in the chuck under high torque, leading to "chatter" that shatters the cutting edge.
Comprehensive Industrial Sizing: This 7-Piece Master Kit includes the five most critical industrial diameters (16mm to 45mm), ensuring you have the exact tool for everything from small indicators to large conduit entries.
YG8 Tungsten Carbide Inserts: Every saw in the kit features vacuum-brazed YG8 carbide tips. These inserts maintain a hardness of HRA 90+, allowing for continuous high-speed boring in materials that would destroy standard steel tools.
Integrated Stability System: All units feature a 10mm (3/8") Three-Flat (Triangular) Shank. This design locks into any standard 3-jaw chuck, ensuring zero-slip torque transfer and protecting the operator from sudden kickback.
| Piece Description | Metric Size (mm) | Fractional Size (in) | Shank Diameter | Pilot Drill Length |
| Hole Saw Body 1 | 16mm | 5/8" | 10mm (3-Flat) | Included |
| Hole Saw Body 2 | 22mm | 7/8" | 10mm (3-Flat) | Included |
| Hole Saw Body 3 | 29mm | 1-1/8" | 10mm (3-Flat) | Included |
| Hole Saw Body 4 | 38mm | 1-1/2" | 10mm (3-Flat) | Included |
| Hole Saw Body 5 | 45mm | 1-3/4" | 10mm (3-Flat) | Included |
| Spare Pilot Bit 1 | 6mm Diameter | — | — | 65mm (2-9/16") |
| Spare Pilot Bit 2 | 6mm Diameter | — | — | 65mm (2-9/16") |
Industrial Electrical MRO: The perfect kit for installing PG9 through PG29 cable glands and a full range of industrial push-buttons and pilot lights.
HVAC & Fluid Transport: Precision boring for coolant lines, pressure sensors, and primary ventilation probes in thick-walled galvanized steel and aluminum manifolds.
Commercial Mechanical Infrastructure: Ideal for boring through structural steel plates and I-beams where high-cycle durability is mandatory.
Material Versatility: Optimized for Stainless Steel (≤ 5mm), Iron Plate (≤ 20mm), Aluminum Alloys, Cast Iron, and Fiber-Reinforced Plastics (FRP).
Speed Management:
16mm – 22mm: 450 - 600 RPM
29mm – 45mm: 200 - 400 RPM
Centering Dynamics: The kit includes 65mm (2-9/16") Pilot Bits equipped with high-tension ejection springs. The extra length ensures the pilot stabilizes the tool before the carbide teeth engage the material.
Q: Why does the kit include two spare pilot bits?
A: In high-torque TCT boring, the pilot drill is the primary point of stress. Including spare 65mm bits ensures your workflow is never interrupted if a pilot becomes dull or damaged.
Q: Is the three-flat shank compatible with cordless drills?
A: Absolutely. The 10mm triangular shank is designed to prevent "spinning" in cordless drill chucks, making it the most reliable interface for handheld industrial work.
Q: Can these saws be used on curved surfaces like pipes?
A: Yes. The 135° split-point geometry on the pilot bit prevents "walking" on curved surfaces, allowing the carbide teeth to engage the pipe radius evenly.
High-Vacuum Brazing: Carbide tips are bonded using advanced vacuum brazing to ensure zero tip-loss during high-impact structural boring.
Concentricity Standards: Every unit in the set is tested to ensure a Total Indicator Runout (TIR) ≤ 0.10mm.
Industrial Compliance: Manufactured to international engineering standards for mission-critical industrial maintenance and heavy-duty fabrication.
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