About this product

Master Precision Cuts with the 40mm Bi-Metal M42 Hole Saw

Unlock professional-grade drilling performance with our 40mm Bi-Metal M42 High-Speed Steel Hole Saw featuring a precision pilot bit. Engineered from top-tier M42 bi-metal high-speed steel, this hole saw delivers outstanding hardness, heat resistance, and wear resistance. It maintains a razor-sharp cutting edge even under extreme temperatures, ensuring long-term high-speed operation without deformation or dulling.

Superior Cutting Power for Tough Materials

Experience remarkable cutting performance with ultra-sharp M42 high-speed steel teeth (≥65 HRC) bonded to a flexible bi-metal body. This robust design provides a longer service life, smoother cuts, and higher efficiency when tackling hard and thick materials like metal, wood, PVC, drywall, plastic, gypsum board, and rubber. Whether you're a professional tradesperson or a DIY enthusiast, this hole saw makes clean, effortless cuts every time.

Smart Design for Effortless Operation

Our optimized multi-hole layout and spring-guided pilot bit work together to automatically eject the cutting disc after drilling, significantly improving chip removal and preventing clogging—especially in thick or dense materials. This smart design streamlines your workflow, allowing you to drill with confidence and ease.

Built for Safety and Convenience

Clear, permanently etched size markings enable rapid tool selection, while the universal shank fits most electric and cordless drill chucks for quick installation, secure clamping, and stable torque transmission. This reduces the risk of slipping under heavy loads, enhancing both safety and control.