Utoolmart 21.5mm HSS Drill Bit Hole Saw Cutter, Sharp and Durable, for Cutting Holes on Wood, Plastic Sheet, Stainless Steel, Iron, Aluminum Plate

Utoolmart 12mm HSS Drill Bit Hole Saw CutterProduct Feature*Hole saw is made of HSS high speed steel, durable and practical for impact resistance, wear resistance.*Hole drill bit is through a special heat treatment, sharp edge, high precision, smooth cutting and high strength.*Openings for stainless steel, iron, aluminum, and various types of pipes.*Hole saw creates a hole in the work piece without having to cut up the core material.*Hole saw is perfect for Installing Locks, Knobs in Doors and Cabinets in Seconds, which make the job quick and easy.*Hole saw works with the ordinary electric drill and is ideal for drilling large diameter holes through Desks, Home Wood, Aluminum Plate, Alloy Plate, Plastic Sheet etc.Technical ParametersProduct Name: Hole SawMaterial: HSSCutting Diameter: 12mm / 0.47 inchTotal Length: 70mm / 2.76 inchMain Color: Silver Tone, BlackHow to Use:1. Check the integrity of the hole drill before use,2. The hole drill is installed with the electric drill, and the corresponding handle part is clamped in three planes,3. When drilling, keep the drill perpendicular to the work,4. Start drilling with a small feed force,5. Medium feed force is used after positioning,6. Drilling operation, the speed should not be too low, through the cutting jam caused by the collapse of the edge,7. When the positioning drill drills through the workpiece, the force is not large, so as to avoid strong impact between the cutting edge of the hole drill and the workpiece.Package Content1 x Hole Saw1 x Hex Wrench

• 【Parameter】- Hole saw is made of HSS high speed steel, impact resistance, wear resistance. The shank diameter is 8mm / 0.31-inch, cutting depth is 15mm / 0.59-inch, 21.5mm / 0.85-inch cutting diameter.
• 【Function】- The product is suitable for thin iron plates with a thickness of less than 2mm, metal openings such as stainless steel, aluminum alloys, and various pipes, and can also be used for wooden plates.
• 【Advantage】- Hole drill bit is with special heat treatment, sharp edge, high strength. Hole Saw is suitable for hand-held electric drill, vertical electric drill and mobile belt magnetic drilling machine.
• 【Wide applications】- Perfect for Installing Locks, Knobs in Doors and Cabinets or Drilling Larger Diameter Holes Through Desks Etc.
• 【Warm Tips】- When cutting chilled materials, pay attention to the temperature and need to add water. When drilling, please use it gradually and do not use excessive force.