Hole Saw Kit 16-210mm M42 Bi-Metal Hole Saw HSS Drill Bits Drilling Crown for Metal Iron Aluminum Stainless Wood Cutter Tools Professional(70mm,5pcs)

Name: M42 All Metal OpenerMaterial: M42 high-speed steelScope of application: Suitable for processing various wooden boards, iron sheets, 45 # steel, gypsum boards, PVC, acrylic, roof and other materials for drilling operations.Attention: When processing a thickness of 10mm or more, it is necessary to the spring on the center drill, which is suitable for use with AC electric hand drills and bench drills.instructions1. This type of hole opener comes with a positioning center drill and requires manual installation and tightening.2. During the drilling operation, the center positioning drill first cuts, and only starts the operation at the end when it is in place. The center drill plays a fixed role.3. When cutting continuously, please choose a lower speed.4. To knife breakage, please do not let the cutting edge of the hole opener collide violently with the cutting material.5. It is necessary to add water or coolant to cool down, otherwise there is a risk of burning the drill bit.6. Operators should wear glasses to their eyes. Wear a mask when working face up.7. Earplugs should be worn well during long-term work to reduce the impact of noise.8. After long-term operation, the opening device is in a scorching state, and care should be taken to avoid burning the skin when replacing it.9. After use, apply rust oil for a longer service life.DIY : MetalworkingMaterial : High Speed SteelType : Center Drill BitUse : Metal DrillingWelcome! Our store has a wide variety of products with reliable quality. l hope to bringyou a pleasant shopping experience. lf you have any questions, please feel free to conta me!

• 1. This drill bit features a precision geometric cutting edge design and optimized chip evacuation flutes, ensuring rapid penetration and minimal resistance when drilling holes in various types of wood. It effortlessly produces smooth-edged, dimensionally accurate holes, effectively enhancing your woodworking efficiency and finished product quality.
• 2. Crafted from steel and reinforced through heat treatment, the drill body boasts exceptional hardness. It maintains a sharp cutting edge even with frequent use, extending tool life and making it a reliable long-term partner.
• 3. Compatible with handheld drills, bench drills, and other power tools, it meets drilling needs for solid wood, plywood, MDF, and other common wood materials. Whether for professional woodcraft, furniture assembly/repair, or home DIY projects, it serves as your capable assistant.
• 4. The uniquely designed spiral flute efficiently and smoothly evacuates wood chips generated during drilling, effectively Avoid clogging. This ensures consistent drilling speed while maintaining a cleaner workspace, minimizing the hassle of mid-job cleanup.
• 5. No complex setup is required after unboxing—simply mount it in a standard drill chuck. Clear specification markings enable quick and accurate model selection. Whether you're an experienced professional or a beginner enthusiast, you can get started effortlessly and begin your creative projects immediately.