1. Adjustable airplane-style design The adjustable circular hole cutter can cut circular holes cleanly with diameters in the range of 30 mm to 300 mm. 2. Fast and accurate There are scale markings on the alloy steel beam for quick measurement and relatively precise cutting. 3. Perfect circle The double - blade design can cut out relatively straight circles with smooth and burr - free cuts. 4. Application scope It is widely used for woodworking hole drilling, projector hole drilling, plastic board hole drilling, DIY speaker hole drilling, etc. 5. Adjustable circular hole cutter It is equipped with two interchangeable cutter heads that can be used for thinner or thicker materials. It can be used for woodworking hole drilling, spotlight hole drilling, plastic board hole drilling, DIY speaker hole drilling, etc. 6. Diameter range The diameter is in the range of 30 - 300 mm. 7. Adjustable airplane-style design It can cut circular holes cleanly with diameters ranging from 30 mm to 300 mm, meeting various needs. 8. Product concept - Real tools, design your life - 9. Suitable materials (1) Suitable for: solid wood, density board, medium - density fiberboard, plywood, laminate, composite materials, rubber, plastic, etc. (2) Not suitable for: metal, glass. 10. Packaging contents (1) 1 adjustable hole saw (2) 1 center cap (3) 1 hex wrench