Industrial TCT Alloy Hole Saw Set | 19mm-38mm Tungsten Carbide Tipped Metal

Product Specification

1. Problem: Premature Failure in Heavy Plate Boring

• The Problem: When boring through thick stainless steel or high-density alloy plates, standard bi-metal or HSS saws often suffer from "tooth-stripping" and thermal blunting. At a 25mm depth, friction heat becomes trapped, causing standard bits to soften and fail mid-cut.

• The Result: Incomplete holes, wasted material, and significant downtime on the job site due to frequent tool replacements.

2. Cause: Inadequate Heat Resistance and Structural Flex

• Material Fatigue: Standard steel teeth cannot maintain their hardness above 600°C. In thick-plate applications, the cutting edge temperature often exceeds this threshold.

• Rotational Slip: Cylindrical shanks often slip under high torque, leading to inconsistent feed rates and "chatter," which shatters brittle teeth.

3. Solution: YG8 Carbide Integration & Triangular Stability

• YG8 Tungsten Carbide Tips: Each saw is equipped with ultra-hard carbide inserts that maintain their cutting integrity even at "red-heat" temperatures. This allows for continuous boring through 304/316 stainless steel and other hardened alloys.

• 25mm Effective Cutting Depth: Unlike standard shallow-cup saws, the Master Series offers a full 25mm (1 inch) blade length, allowing for one-pass boring through heavy plates and thick-walled pipes.

• Anti-Slip Triangular Shank: The 10mm (2/5") Triangular Shank design provides three flat contact points for the drill chuck. This ensures 100% torque transfer and eliminates rotational slippage, protecting both the tool and the operator.

4. Technical Specifications (Precision Data)

5. Professional Industry Applications

• Heavy Electrical Infrastructure: Precision boring for conduits and cable glands in thick-gauge stainless steel control cabinets and switchgear.

• Mechanical & Fluid Transport: Ideal for installing high-pressure sensors and fittings in thick-walled steel piping and industrial manifolds.

• Aerospace & Marine MRO: Reliable boring in high-tensile alloy plates and structural components where precision and tool life are mission-critical.

6. Selection & Operation Guide

• Material Versatility: Optimized for Stainless Steel (≤ 10mm), Iron Plate (≤ 25mm), Aluminum, Cast Iron, and Fiberglass.

• Rotational Speed (RPM): For the 38mm saw in stainless steel, maintain 200 - 300 RPM. For smaller diameters (19mm), you can increase to 400 - 500 RPM.

• Centering Protocol: The 6mm Pilot Drill with a high-tension ejection spring ensures the tool bites instantly. Always allow the pilot to penetrate fully before engaging the carbide teeth with the material surface.

7. FAQ: Expert Technical Support

• Q: Why use a Triangular Shank instead of a standard Hex Shank?

  • A: The Triangular Shank (Three-flat) is specifically engineered for high-torque TCT applications. It provides a more stable grip in 3-jaw chucks, preventing the "spinning" effect that can occur with round or small hex shanks under heavy load.

• Q: Is the pilot drill replaceable?

  • A: Yes. The 6mm pilot bit is secured by an internal grub screw. If the pilot becomes dull, it can be easily swapped out to maintain the concentricity of the 90mm assembly.

• Q: What is the benefit of the ejection spring?

  • A: At a 25mm cutting depth, the metal "slug" is heavy. The high-tension spring automatically ejects the core the moment the cut is finished, preventing the slug from getting stuck inside the carbide cup.

8. Technical Quality & Trust Information

• Monoblock Rigidity: The 90mm whole-length design ensures the tool body remains rigid under high feed pressure, preventing "bowing" or tapered holes.

• Advanced Brazing: Every carbide tip is vacuum-brazed to the alloy body, ensuring a permanent bond that withstands high-frequency industrial impacts.

• Concentricity Standards: Manufactured to strict engineering tolerances to ensure a TIR ≤ 0.10mm, providing the highest level of circular accuracy in the category.