
Hole Saws & Step Drills
Industrial M42 Bi-Metal Hole Saw with Arbor (8% Cobalt) – Fully Customizable Sizes
Premium M42 Cobalt Bi-Metal Hole Cutter for Metal & Wood (OEM Supported)
Quick Specifications
| Product Name | Premium M42 Bi-Metal Hole Saw (8% Cobalt) |
|---|---|
| Drill Type | Hole Saw Drill Bit |
| Material | M42 HSS (8% Cobalt) Teeth + High Yield Carbon Steel Body |
| Surface Finish | Red Painted (Custom Colors Available) |
| Size Range | 14mm to 200mm (Fully Customizable to OEM Specs) |
| Cutting Depth | Standard 38mm / 1-1/2" (Customizable Depths Available) |
| Shank Type | Hex Shank Arbor (Quick-Change Compatible) |
| Process | Electron Beam Welded & Precision Milled |
| Application | Stainless Steel, Metal, Wood, Plastic, Drywall |
| Brand Name | Xiaoman Tools |
| Customized Support | Full OEM/ODM (Sizes, Colors, Laser Logo, Packaging) |
| Accessories | Pilot Drill Bit & Ejection Spring Included |
- Factory Direct Pricing
- Strict Standard QC
- Support OEM / Custom Packaging
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Product Details
Industrial M42 Bi-Metal Hole Saw with Arbor (8% Cobalt)
Heavy-Duty Cutting Power with Fully Customizable OEM Options
Engineered for maximum durability in extreme cutting environments, Xiaoman Tools' Bi-Metal Hole Saws are the ultimate choice for professional contractors and industrial manufacturers. Featuring premium M42 High-Speed Steel teeth with 8% Cobalt, these hole cutters effortlessly slice through stainless steel, cast iron, thick wood, and durable plastics. As a leading source factory, we break the limits of standard dimensions, offering 100% customizable sizes, cutting depths, and bespoke surface colors to perfectly align with your wholesale brand requirements.
Key Technical Advantages
- M42 8% Cobalt Edge: The cutting edge is manufactured from premium M42 HSS containing 8% Cobalt. This provides exceptional red-hardness and wear resistance, significantly extending the tool's life even when cutting abrasive materials like stainless steel.
- Electron Beam Welded Structure: The super-hard M42 teeth are electron beam welded to a tough, shatter-resistant carbon steel backing, absorbing impact shocks and preventing tooth strippage under heavy loads.
- Smart Ejection Spring: Equipped with a heavy-duty pilot drill bit and a built-in ejection spring that automatically pushes out the cut slug, drastically reducing downtime between cuts.
- Optimized Milled Flutes: The razor-sharp, precision-milled variable pitch teeth aggressively clear chips and reduce vibration, ensuring incredibly smooth and fast hole creation.
- Limitless Customization: While our standard range covers 14mm to 200mm with a 38mm (1-1/2") cutting depth, our production lines are fully equipped to manufacture custom diameters, extra-deep variants, and apply custom brand paint colors upon your request.
Technical Specifications
| Manufacturer: | Xiaoman Tools (Shanghai, China) |
| Tooth Material: | M42 HSS (8% Cobalt) |
| Body Material: | High Yield Flexible Carbon Steel |
| Available Diameters: | Standard 14mm - 200mm (OEM Sizes Available) |
| Cutting Depth: | Standard 38mm / 1-1/2" (Custom Depths Available) |
| Surface Finish: | Rust-Resistant Paint (Custom Colors Accepted) |
| Target Applications: | Stainless Steel, Mild Steel, Aluminum, Wood, Plastics |
| Included Components: | Hole Saw, Heavy-Duty Arbor, Pilot Drill, Slug Ejection Spring |



