Pros
- Cuts rapidly through hardened steel, iron, and stainless steel.
- M2 pilot bit provides solid center stability and smooth startup.
- 3-flat shank securely locks into standard 3/8-inch chucks without slipping.
- Clean cutting profile leaves minimal burrs on metal surfaces.
Cons
- Carbide teeth can chip if used without cutting fluid or at excessively high RPM.
- Cutting depth is limited to 1 inch (25mm), making it unsuitable for thick solid stock or deep cuts.
- Requires steady hand pressure to avoid grabbing on thin or irregular materials.
The GRIXLEN 1-1/2 Inch (38mm) Tungsten Carbide Tip Hole Saw is engineered specifically to tackle tough drilling jobs in materials where conventional bi-metal hole saws struggle. Equipped with ultra-hard carbide cutting teeth and an integrated M2 high-speed steel pilot bit, this hole saw targets automotive fabricators, electricians, metalworkers, and home DIYers who regularly drill through stainless steel, structural steel brackets, iron, and rigid plastics.
In real-world applications, this cutter delivers exceptionally clean, circular cuts with minimal effort. Users drilling into stainless steel exhaust headers for sensor bungs or cutting structural steel plates report fast, smooth penetration without excessive heat buildup. The M2 pilot bit does a great job keeping the saw centered and preventing walking across polished surfaces, while the 3-flat 3/8-inch shank locks securely into standard drill chucks to eliminate slippage under load.
Build quality is robust, featuring precision-brazed carbide tips designed to maintain an edge far longer than standard high-speed steel alternatives. However, because tungsten carbide is inherently brittle, proper drilling technique is essential. Using a slow drill speed and applying cutting lubricant or cooling oil during operation is crucial to prevent the teeth from chipping or shearing off, particularly when cutting through thin or galvanized stock.
Overall, the GRIXLEN 1-1/2 Inch TCT Hole Saw provides exceptional cutting performance and value for tough metalworking projects. As long as users operate at appropriate speeds with adequate lubrication, it serves as a reliable, clean-cutting addition to any fabrication toolkit.
Diameter: 1-1/2 inches (38mm)
Drilling Depth: 1 inch (25mm)
Shank Size: 3/8-inch (10mm) 3-flat shank
Blade Material: Tungsten Carbide Tipped (TCT)
Pilot Bit: M2 High-Speed Steel
Pro Tip for Longevity: Always operate your drill at low to medium RPM when boring through metal and apply generous cutting fluid. Avoid tilting the drill once the cut has started to protect the carbide teeth from lateral stress.