Professional 7-Piece TCT Alloy Hole Saw Kit | 16mm-45mm Tungsten Carbide Tipped

Product Specification

1. Problem: Inefficient Tool Selection and Thermal Failure in Mixed Materials

• 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.

2. Cause: Diameter Gap and Structural Inconsistency

• 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.

3. Solution: The Unified YG8 Carbide 7-Piece System

• 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.

4. Technical Specifications (Set Configuration)

5. Professional Industry Applications

• 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.

6. Selection & Operation Guide

• 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.

7. FAQ: Expert Technical Support

• 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.

8. Technical Quality & Trust Information

• 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.