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| Brand Name: | XRTOOLS |
| Model Number: | 19pc 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 Result: Significant "lost-time" labor costs, incomplete production runs, and the hazard of using worn pilot bits which leads to "walking" and catastrophic carbide tip fractures.
Pilot Fatigue: The center drill is the first point of contact and bears the highest heat load. In stainless steel boring, it acts as a heat sink, which accelerates blunting.
Selection Gaps: Missing intermediate sizes (like 14mm or 44mm) forces technicians to use "near-fit" diameters, compromising the seal integrity of high-spec electrical and fluid connectors.
13-Diameter Full Spectrum: This collection provides an exhaustive range from 13mm (1/2") to 54mm (2-1/8"). It ensures absolute compatibility with nearly every international industrial standard for PG glands, M-series conduits, and heavy-duty sensors.
Triple Redundancy Accessory Pack: To eliminate downtime, this kit includes 3 spare pilot bits and 3 spare high-tension springs. This 3X redundancy ensures that the cutting crew can swap worn components instantly on-site without returning to the tool crib.
YG8 Triple-Edge Milling Technology: Every cutter features vacuum-brazed YG8 Tungsten Carbide tips with a specialized triple-edge geometry. This divides the cutting load into three distinct stages (Outer, Middle, Inner), reducing required torque by 35% and preventing the "grabbing" common in large-diameter metal boring.
Three-Flat (Triangular) Shank Stability: All units feature a reinforced 10mm (3/8") Triangular Shank. This design locks into any 3-jaw chuck with 100% torque transfer, eliminating rotational slippage and ensuring a perfectly balanced, zero-vibration bore.
| Component Type | Quantity | Specifications (Ascending Order) | Industrial Benefit |
| TCT Hole Saws | 13 Pcs | 13, 14, 16, 19, 22, 25, 29, 32, 35, 38, 44, 51, 54mm | Full industrial mounting coverage. |
| Spare Pilot Bits | 3 Pcs | 6mm Dia. / 135° Split Point | Eliminates work stoppage from blunting. |
| Ejection Springs | 3 Pcs | High-Tension Compression | Reliable core ejection for high-speed cycles. |
| Hex Keys | 3 Pcs | Structural Alloy Steel | Multiple technicians can adjust tools simultaneously. |
| Shank Type | — | 10mm (3/8") Triangular | Zero-slip torque transfer. |
| Tip Hardness | — | HRA 90+ (YG8 Tungsten Carbide) | Effortless cutting in 304/316 Stainless. |
Shipbuilding & Marine MRO: Precision boring in thick-walled 316 stainless steel hulls and alloy bulkheads where tool failure is not an option.
Heavy Electrical MEP: Specifically sized for the complete range of M12 through M50 cable glands and secondary conduit transitions in industrial distribution hubs.
Petrochemical & Oil/Gas: Ideal for repetitive boring through thick structural I-beams and pressure vessel housings where tool redundancy is mandatory for offshore safety.
Material Versatility: Optimized for Stainless Steel (≤ 10mm), Structural Steel Plate (≤ 25mm), Cast Iron, and Fiber-Reinforced Plastics (FRP).
RPM Strategy:
13mm – 25mm: 400 - 600 RPM
29mm – 38mm: 250 - 400 RPM
44mm – 54mm: 100 - 180 RPM
Centering Dynamics: Always engage the pilot drill first. Once the pilot stabilizes the axis, the high-tension spring will exert the necessary pressure for a smooth, perpendicular carbide engagement.
Q: Why are there 3 spare pilot bits and 3 hex keys included?
A: Large-scale projects often involve multiple technicians or multiple work stations. Providing 3X redundancy ensures that "lost or worn" small parts do not halt a high-value production line.
Q: Can the 54mm saw handle thick plate?
A: Absolutely. The YG8 carbide tips are designed for 25mm (1 inch) effective cutting depth in a single pass, provided low-RPM and constant lubrication are maintained.
Q: Is the triangular shank better than a hex shank?
A: For large-diameter TCT saws, the triangular (three-flat) shank provides a larger surface area for the chuck jaws to grip, making it more resistant to high-torque "spinning" compared to standard small hex shanks.
High-Vacuum Fusion: Carbide tips are vacuum-brazed to the body 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, providing the highest precision in the category.
Industrial Compliance: Manufactured to meet international engineering tolerances for consistent, safe, and professional results on 2026 industrial job sites.
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