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Adjustable Circle Hole Cutter Saw Drill Bit

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This Adjustable Hole Cutter is widely used for opening holes in wood, plastic board, gypsum board, PVC sheet, glass, porcelain, etc. The tungsten carbide blade can be adjusted from 30-120mm. This Adjustable Hole Cutter is suitable for any variable speed drill, it even comes with a round-tipped bit for lower RPM usage.

Adjustable Hole Cutter has 2 adjustable blades that can be adjusted for a wider range of hole diameter. 


  1. Make sure the blades are equally adjusted before drilling or else the force will be uneven.
  2. Adjust to the required size, be sure to use the hex wrench to tighten the screws.
  3. Please don't use on steel sheet or other metal.
  4. The speed of drilling must be slow, and the material of drilling does not contain iron, nails or other metal.
  5. The Adjustable Circle Hole Cutter will make clean cuts from 30mm-120mm , 30mm-200mm, 30mm-300mm diameter.



- The hole is round and cut flat,smooth and burr-free, and the roundness is good.

- Can be used again after sharp and durable polishing.

- The diameter of the hole can be adjusted by the distance from the tip to the center.

- Heated alloy steel used for bomoban(up to 10mm).

- Exquisite craftsma nship superior performance wide application.

- Applicable materials: wood board, plastic board, plywood, gypsum board, etc.



  • Material: Steel body & Alloy heads
  • Adjustable range: 40-300mm
  • Cutting Hole Diameter: 40-120mm, 40-200mm, 40-300mm
  • Cutting Depth: 30mm
  • Shank Diameter:10mm (Suitable for 10mm diameter electric drill)
  • Suitable for drill: Plywood, Laminates, Composite, Gypsum, Rubber, Plastic, Hardwood etc.
  • Retail Packaging: Yes, General Box

How to use:

1. Two blades reach drill center distance are equal, can open hole.

2. Two blades reach drill center distance are not equal, can get concentric rings and circles.

3. Before drilling to check whether the blade is fixed and adjustable diameter bolts tightened to prevent accidents

4. When the blade is not sharp please grind the blade then use.


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