9 pcs Bi-Metal Hole Saw Set

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A 9 PCS Bi-Metal Hole Saw Set refers to a collection of nine hole saws, each constructed with a bi-metal design. A hole saw is a cylindrical cutting tool used to create holes in various materials such as wood, metal, plastic, and more. The term “bi-metal” indicates that the hole saws are made from two different types of metals, typically high-speed steel (HSS) and a more durable alloy like cobalt. This combination enhances the hole saw’s cutting performance, making it suitable for a wide range of applications and providing increased durability and longevity. The set typically includes hole saws of different sizes to accommodate various hole diameters, making it a versatile tool for professionals and DIY enthusiasts alike.


1. Cutting edge: M3 HSS
2. Matrix material: 65Mn
3. Cutting depth: 38mm
4. For cutting metal
5. Packed by plastic box



  1. Woodworking: Hole saws are commonly used in woodworking to create holes for pipes, wires, or dowels. The bi-metal construction allows for efficient cutting through various types of wood.
  2. Metalworking: These hole saw sets are suitable for cutting holes in metal surfaces, including aluminum, steel, and other alloys. The bi-metal design provides the durability needed for metal-cutting applications.
  3. Plumbing: Hole saws are frequently used in plumbing for drilling holes in walls or panels to install pipes and fittings. The set’s multiple sizes allow for flexibility in accommodating different pipe diameters.
  4. Electrical Work: Electricians use hole saws to create openings for electrical boxes, outlets, and conduits in walls and panels. The bi-metal construction ensures longevity and efficiency when cutting through materials like drywall and plywood.
  5. HVAC (Heating, Ventilation, and Air Conditioning): Hole saws are employed in HVAC installations for cutting openings in ductwork and panels to accommodate vents, pipes, and other components.
  6. Carpentry and Construction: In construction projects, hole saws are used for various tasks, such as creating openings for door knobs, locks, and other hardware installations.
  7. DIY Home Improvement: Homeowners and DIY enthusiasts can use a bi-metal hole saw set for a range of projects, including installing doorknobs, running cables or wires through walls, and creating holes for ventilation or plumbing.
  8. Automotive Repair: Hole saws can be utilized in automotive repair for tasks like installing lights, running wires, or creating openings in panels for modifications.
  9. Furniture Making: Woodworkers and furniture makers use hole saws to create openings for handles, knobs, and other decorative or functional elements in furniture pieces.
  10. General Fabrication: The set is useful in a variety of fabrication tasks where precise and clean holes are needed in different materials.
SKU: AHS91125 Category:


1. 6 Hole saws: 3/4″, 7/8″, 1-1/8″,1-
1/2″ , 1-3/4″ , 2-1/4″
2. Mandrel adaptor
3. 1/4” Mandril (3/8” – 1-3/16”)
4. 7/16” Hex (1-1/4” – 6”)-

Safety measures and precautions

  1. Personal Protective Equipment (PPE):
    • Always wear appropriate PPE, including safety glasses or a face shield to protect your eyes from debris.
    • Use hearing protection, especially if you are working in a noisy environment.
  2. Clothing:
    • Wear long sleeves, long pants, and sturdy footwear to protect your skin from potential hazards.
  3. Secure Workpiece:
    • Secure the workpiece firmly in place using clamps or other suitable means to prevent movement during drilling.
  4. Stable Workspace:
    • Ensure a stable and well-lit work environment to reduce the risk of accidents.
    • Keep the work area clean and free of clutter to avoid tripping hazards.
  5. Tool Inspection:
    • Before use, inspect the hole saws for any damage, such as missing teeth or warping. Do not use damaged tools.
    • Ensure that the hole saw is securely attached to the arbor.
  6. Speed and Feed Rates:
    • Follow the manufacturer’s recommendations regarding the proper speed and feed rates for the specific material you are working on.
    • Avoid forcing the hole saw through the material; let the tool do the cutting.
  7. Cooling and Lubrication:
    • Use cutting oil or a suitable lubricant to cool the hole saw during operation, especially when cutting through metal.
    • Periodically stop to allow the tool to cool, preventing overheating.
  8. Correct Tool for the Job:
    • Choose the appropriate size and type of hole saw for the specific task and material. Using the wrong tool can lead to inefficiency and safety hazards.
  9. Two-Hand Operation:
    • When possible, use both hands to operate the tool for better control and stability.
  10. Disconnect Power:
    • If using a power drill, make sure it is disconnected from the power source when changing hole saws or making adjustments.
  11. Read the Manual:
    • Familiarize yourself with the manufacturer’s instructions and recommendations in the tool’s manual.
  12. Emergency Response:
    • Be aware of the location of emergency stops and equipment, such as fire extinguishers, in case of unexpected incidents.
  13. Training:
    • Ensure that users are adequately trained on the proper use of the hole saw set and understand safety precautions.


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